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Keyboard concertos by Johann Sebastian Bach
Keyboard concertos by Johann Sebastian Bach
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Composer directing cantata from gallery in a church, engraving from Musicalisches Lexicon, Johann Gottfried Walther, 1732

The keyboard concertos, BWV 1052–1065, are concertos for harpsichord (or organ), strings and continuo by Johann Sebastian Bach. There are seven complete concertos for a single harpsichord (BWV 1052–1058), three concertos for two harpsichords (BWV 1060–1062), two concertos for three harpsichords (BWV 1063 and 1064), and one concerto for four harpsichords (BWV 1065). Two other concertos include solo harpsichord parts: the concerto BWV 1044, which has solo parts for harpsichord, violin and flute, and Brandenburg Concerto No. 5 in D major, with the same scoring. In addition, there is a nine-bar concerto fragment for harpsichord (BWV 1059) which adds an oboe to the strings and continuo.

Most of Bach's harpsichord concertos (with the exception of the 5th Brandenburg Concerto) are thought to be arrangements made from earlier concertos for melodic instruments probably written in Köthen. In many cases, only the harpsichord version has survived. They are among the first concertos for keyboard instrument ever written.

History

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Engraving of the Thomaskirche in Leipzig in 1723, the year in which Bach was appointed there. He took up residence with his family in the Thomasschule on the left.

The music performed by the Society was of various kinds; hence we may assume that violin and clavier concertos by Bach were also performed, though more frequently, perhaps, at Bach's house ... The most flourishing time in Bach's domestic band was, no doubt, from about 1730 until 1733, since the grown-up sons, Friedemann and Emanuel, were still living in their father's house, Bernhard was already grown up, and Krebs, who had been Sebastian's pupil since 1726, was beginning to display his great talents ... Whether Bach ever wrote violin concertos expressly for them must remain undecided ... In this branch of art he devoted himself chiefly at Leipzig to the clavier concerto.

— Philipp Spitta, "Johann Sebastian Bach," 1880[1]

The concertos for one harpsichord, BWV 1052–1059, survive in an autograph score, now held in the Berlin State Library. Based on the paper's watermarks and the handwriting, it has been attributed to 1738 or 1739.[2] As Peter Williams records, these concertos are almost all considered to be arrangements by Bach of previously existing works. Establishing the history or purpose of any of the harpsichord concertos, however, is not a straightforward task. At present, attempts to reconstruct the compositional history can only be at the level of plausible suggestions or conjectures, mainly because very little of Bach's instrumental music has survived and, even when it has, sources are patchy. In particular this makes it hard not only to determine the place, time and purpose of the original compositions but even to determine the original key and intended instrument.[3]

Johann Georg Schreiber, 1720: Engraving of Katherinenstrasse in Leipzig. In the centre is Café Zimmermann, where the Collegium Musicum held weekly chamber music concerts

The harpsichord part in the autograph manuscript is not a "fair copy" but a composing score with numerous corrections. The orchestral parts on the other hand were executed as a fair copy.[2][4] Various possible explanations have been proposed as to why Bach assembled the collection of harpsichord concertos at this particular time. One centres on his role as director of the Collegium Musicum in Leipzig, a municipal musical society, which gave weekly concerts at the Café Zimmermann, drawing many performers from students at the university. Bach served as director from spring 1729 to summer 1737; and again from October 1739 until 1740 or 1741. John Butt suggests that the manuscript was prepared for performances on Bach's resumption as director in 1739, additional evidence coming from the fact that the manuscript subsequently remained in Leipzig.[5] Peter Wollny, however, considers it unlikely that The Collegium Musicum would have required orchestral parts that were so neatly draughted; he considers it more plausible that the manuscript was prepared for a visit that Bach made to Dresden in 1738 when he would almost certainly have given private concerts in court (or to the nobility) and the ripieno parts would have been played by the resident orchestra.[2][6] Peter Williams has also suggested that the collection would have been a useful addition to the repertoire of his two elder sons, Wilhelm Friedemann and Carl Philipp Emanuel, both employed as professional keyboard-players at the time of writing. Williams has also speculated that it might not be mere coincidence that the timing matched the publication of the first ever collection of keyboard concertos, the widely acclaimed and well-selling Organ concertos, Op. 4 of George Frideric Handel published in London and Paris in 1738.[7]

A single-manual harpsichord conserved in the Bach House in Eisenach

The concertos for two or more harpsichords date from a slightly earlier period. The parts from the concerto for four harpsichords BWV 1065 (Bach's arrangement of the Concerto for Four Violins, RV 580, by Antonio Vivaldi), have been dated to around 1730.[5] Whereas the harpsichord concertos were composed partly to showcase Bach's own prowess at the keyboard, the others were written for different purposes, one of them being as Hausmusik—music for domestic performance within the Bach household at the Thomasschule in Leipzig. Johann Nikolaus Forkel, Bach's first biographer, recorded in 1802 that the concertos for two or more harpsichords were played with his two elder sons. Both of them corresponded with Forkel and both remained in the parental home until the early 1730s: Wilhelm Friedemann departed in 1733 to take up an appointment as organist at the Sophienkirche in Dresden; and in 1735 Carl Philipp Emanuel moved to the university in Frankfurt an der Oder to continue training for his (short-lived) legal career. There are also first-hand accounts of music-making by the entire Bach family, although these probably date from the 1740s during visits to Leipzig by the two elder sons: one of Bach's pupils, J. F. K. Sonnenkalb, recorded that house-concerts were frequent and involved Bach together with his two elder sons, two of his younger sons—Johann Christoph Friedrich and Johann Christian—as well as his son-in-law Johann Christoph Altnickol. It is also known that Wilhelm Friedemann visited his father for one month in 1739 with two distinguished lutenists (one of them was Sylvius Weiss), which would have provided further opportunities for domestic music-making. The arrangement of the organ sonatas, BWV 525–530, for two harpsichords with each player providing the pedal part in the left hand, is also presumed to have originated as Hausmusik, a duet for the elder sons.[8]

The harpsichord concertos were composed in a manner completely idiomatic to the keyboard (this was equally true for those written for two or more harpsichords). They were almost certainly originally conceived for a small chamber group, with one instrument per desk, even if performed on one of the newly developed fortepianos, which only gradually acquired the potential for producing a louder dynamic. The keyboard writing also conforms to a practice that lasted until the early nineteenth century, namely the soloist played along with the orchestra in tutti sections, only coming into prominence in solo passages.[9]

Silbermann organ in the Sophienkirche, Dresden, 1910, destroyed in World War II

The question "Did J.S. Bach write organ concertos?" has led Christoph Wolff[10] and Gregory Butler [11] to propose that Bach originally wrote the concertos BWV 1052 and BWV 1053 for solo organ and orchestra. Among other evidence, they note that both concertos consist of movements that Bach had previously used as instrumental sinfonias in 1726 cantatas with obbligato organ providing the melody instrument (BWV 146, BWV 169 and BWV 188). A Hamburg newspaper reported on a recital by Bach in 1725 on the Silbermann organ in the Sophienkirche, Dresden, mentioning in particular that he had played concertos interspersed with sweet instrumental music ("diversen Concerten mit unterlauffender Doucen Instrumental-Music"). Wolff (2016), Rampe (2014), Gregory Butler and Matthew Dirst have suggested that this report might refer to versions of the cantata movements or similar works. Williams (2016) describes the newspaper article as "tantalising" but considers it possible that in the hour-long recital Bach played pieces from his standard organ repertoire (preludes, chorale preludes) and that the reporter was using musical terms in a "garbled" way. In another direction Williams has listed reasons why, unlike Handel, Bach may not have composed concertos for organ and a larger orchestra: firstly, although occasionally used in his cantatas, the Italian concerto style of Vivaldi was quite distant from that of Lutheran church music; secondly, the tuning of the baroque pipe organ would jar with that of a full orchestra, particularly when playing chords; and lastly, the size of the organ loft limited that of the orchestra.[12] Wolff, however, notes that Bach's congregation did not object to his use of the organ obliggato in the sinfonia movements in the aforementioned cantatas.[10]

The earliest extant sources regarding Bach's involvement with the keyboard concerto genre are his Weimar concerto transcriptions, BWV 592–596 and 972–987 (c. 1713–1714), and his fifth Brandenburg Concerto, BWV 1050, the early version of which, BWV 1050a, may have originated before Bach left Weimar in 1717.[13][14]

Concertos for single harpsichord

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The works BWV 1052–1057 were intended as a set of six, shown in the manuscript in Bach's traditional manner beginning with 'J.J.' (Jesu juva, "Jesus, help") and ending with 'Finis. S. D. Gl.' (Soli Deo Gloria). Aside from the Brandenburg concertos, it is the only such collection of concertos in Bach's oeuvre, and it is the only set of concertos from his Leipzig years. The concerto BWV 1058 and fragment BWV 1059 are at the end of the score, but they are an earlier attempt at a set of works (as shown by an additional J.J.), which was, however, abandoned.[15]

Concerto No. 1 in D minor, BWV 1052

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Scoring: harpsichord solo, violin I/II, viola, continuo (cello, violone)

The earliest surviving manuscript of the concerto can be dated to 1734; it was made by Bach's son Carl Philipp Emanuel and contained only the orchestral parts, the cembalo part being added later by an unknown copyist. This version is known as BWV 1052a. The definitive version BWV 1052 was recorded by Bach himself in the autograph manuscript of all eight harpsichord concertos BWV 1052–1058, made around 1738.[16]

In the second half of the 1720s, Bach had already written versions of all three movements of the concerto for two of his cantatas with obbligato organ as solo instrument: the first two movements for the sinfonia and first choral movement of Wir müssen durch viel Trübsal in das Reich Gottes eingehen, BWV 146 (1726); and the last movement for the opening sinfonia of Ich habe meine Zuversicht, BWV 188 (1728). In these cantata versions the orchestra was expanded by the addition of oboes.[17]

Like the other harpsichord concertos, BWV 1052 has been widely believed to be a transcription of a lost concerto for another instrument. Beginning with Wilhelm Rust and Philipp Spitta, many scholars suggested that the original melody instrument was the violin, because of the many violinistic figurations in the solo part—string-crossing, open string techniques—all highly virtuosic. Williams (2016) has speculated that the copies of the orchestral parts made in 1734 (BWV 1052a) might have been used for a performance of the concerto with Carl Philipp Emanuel as soloist. There have been several reconstructions of the putative violin concerto; Ferdinand David made one in 1873; Robert Reitz in 1917; and Wilfried Fischer prepared one for Volume VII/7 of the Neue Bach Ausgabe in 1970 based on BWV 1052. In 1976, in order to resolve playability problems in Fischer's reconstruction, Werner Breig suggested amendments based on the obbligato organ part in the cantatas and BWV 1052a.[18][19][20]

In the twenty-first century, however, Bach scholarship has moved away from any consensus regarding a violin original. In 2016, for example, two leading Bach scholars, Christoph Wolff and Gregory Butler, both published independently conducted research that led each to conclude that the original form of BWV 1052 was an organ concerto composed within the first few years of Bach's tenure in Leipzig. (Previous scholarship often held that Bach composed the original in Weimar or Cöthen.) Both relate the work to performances by Bach of concerted movements for organ and orchestra in Dresden and Leipzig. Wolff also details why the violinistic figuration in the harpsichord part does not demonstrate that it is a transcription from a previous violin part; for one thing, the "extended and extreme passagework" in the solo part "cannot be found in any of Bach's violin concertos"; for another, he points to other relevant Bach keyboard works that "display direct translations of characteristic violin figuration into idiomatic passagework for the keyboard." Also Peter Wollny disagrees with the hypothesis that the works was originally a violin concerto.[21][22][23]

As Werner Breig has shown, the first harpsichord concerto Bach entered into the autograph manuscript was BWV 1058, a straightforward adaptation of the A minor violin concerto. He abandoned the next entry BWV 1059 after only a few bars to begin setting down BWV 1052 with a far more comprehensive approach to recomposing the original than merely adapting the part of the melody instrument.[24][25]

The concerto has similarities with Vivaldi's highly virtuosic Grosso Mogul violin concerto, RV 208, which Bach had previously transcribed for solo organ in BWV 594. It is one of Bach's greatest concertos: in the words of Jones (2013) it "conveys a sense of huge elemental power." This mood is created in the opening sections of the two outer movements. Both start in the manner of Vivaldi with unison writing in the ritornello sections—the last movement begins as follows:[24][25]

Bach then proceeds to juxtapose passages in the key of D minor with passages in A minor: in the first movement this concerns the first 27 bars; and in the last the first 41 bars. These somewhat abrupt changes in tonality convey the spirit of a more ancient modal type of music. In both movements the A sections are fairly closely tied to the ritornello material which is interspersed with brief episodes for the harpsichord. The central B sections of both movements are freely developed and highly virtuosic; they are filled with violinistic figurations including keyboard reworkings of bariolage, a technique that relies on the use of the violin's open strings. The B section in the first movement starts with repeated note bariolage figures:[24][25]

which, when they recur later, become increasingly virtuosic and eventually merge into brilliant filigree semidemiquaver figures—typical of the harpsichord—in the final extended cadenza-like episode before the concluding ritornello.[24][25]

Throughout the first movement the harpsichord part also has several episodes with "perfidia"—the same half bar semiquaver patterns repeated over a prolonged period. Both outer movements are in an ABA′ form: the A section of the first movement is in bars 1–62, the B section starts with the bariolage passage and lasts from bar 62 to bar 171, the A′ section lasts from bar 172 until the end; the A section of the final movement is in bars 1–84, the B section in bars 84–224, and the A′ section from bar 224 until the end. In the first movement the central section is in the keys of D minor and E minor; in the last movement the keys are D minor and A minor. As in the opening sections, the shifts between the two minor tonalities are sudden and pronounced. In the first movement Bach creates another equally dramatic effect by interrupting the relentless minor-key passages with statements of the ritornello theme in major keys. Jones describes these moments of relief as providing "a sudden, unexpected shaft of light."[24][25]

The highly rhythmic thematic material of the solo harpsichord part in the third movement has similarities with the opening of the third Brandenburg Concerto.[24][25]

In both B sections Bach adds unexpected features: in the first movement what should be the last ritornello is interrupted by a brief perfidia episode building up to the true concluding ritornello; similarly in the last movement, after five bars of orchestral ritornello marking the beginning of the A′ section, the thematic material of the harpsichord introduces a freely developed 37-bar highly virtuosic episode culminating in a fermata (for an extemporised cadenza) before the concluding 12 bar ritornello.[24][25]

The slow movement, an Adagio in G minor and 3
4
time, is built on a ground bass which is played in unison by the whole orchestra and the harpsichord in the opening ritornello.[24][25]

It continues throughout the piece providing the foundations over which the solo harpsichord spins a florid and ornamented melodic line in four long episodes.[24][25]

The subdominant tonality of G minor also plays a role in the outer movements, in the bridging passages between the B and A′ sections. More generally Jones (2013) has pointed out that the predominant keys in the outer movements centre around the open strings of the violin.[24][25]

Several hand copies of the concerto—the standard method of transmission—survive from the 18th century; for instance there are hand copies by Johann Friedrich Agricola around 1740, by Christoph Nichelmann and an unknown scribe in the early 1750s. Its first publication in print was in 1838 by the Kistner Publishing House.[26]

The performance history in the nineteenth century can be traced back to the circle of Felix Mendelssohn. In the first decade of the 19th century the harpsichord virtuoso and great aunt of Mendelssohn, Sara Levy, gave public performances of the concerto in Berlin at the Sing-Akademie, established in 1791 by the harpsichordist Carl Friedrich Christian Fasch and subsequently run by Mendelssohn's teacher Carl Friedrich Zelter.[27] In 1824 Mendelssohn's sister Fanny performed the concerto at the same venue.[28] In 1835 Mendelssohn played the concerto in his first year as director of the Gewandhaus in Leipzig.[27] There were further performances at the Gewandhaus in 1837, 1843 and 1863.[29] Ignaz Moscheles, a friend and teacher of Mendelssohn as well as a fellow devotee of Bach, gave the first performance of the concerto in London in 1836 at a benefit concert, adding one flute and two clarinets, bassoons and horns to the orchestra.[30] In a letter to Mendelssohn, he disclosed that he intended the woodwind section to have the "same position in the Concerto as the organ in the performance of a Mass."[30] Robert Schumann subsequently described Moscheles' reorchestration as "very beautiful."[30] The following year Moscheles performed the concerto at the Academy of Ancient Music with Bach's original string orchestration.[30] The Musical World reported that Moscheles "elicited such unequivocal testimonies of delight, as the quiet circle of the Ancient Concert subscribers rarely indulge in."[30] In 1838 the concerto was published in Leipzig.[31][32] Johannes Brahms later composed a cadenza for the last movement of the concerto, which was published posthumously.[33]

Concerto No. 2 in E major, BWV 1053

[edit]
1. Allegro 2. Siciliano 3. Allegro

Scoring: harpsichord solo, violin I/II, viola, continuo (cello, violone)

Several prominent scholars, Siegbert Rampe and Dominik Sackmann, Ulrich Siegele, and Wilfried Fischer have argued that Bach transcribed this concerto from a lost original for oboe or oboe d'amore (Rampe and Sackmann argued for a dating in 1718-19).[34][35][36] Alternatively, Christoph Wolff has suggested that it might have been a 1725 concerto for organ.[37] An organ version exists, like BWV 1052, in a later transcription in his cantatas Gott soll allein mein Herze haben, BWV 169 and Ich geh und suche mit Verlangen, BWV 49.[21]

Bach changed his method of arrangement with this work, significantly altering the ripieno parts from the original concerto for the first time, limited much more to the tutti sections. The lower string parts were much reduced in scope, allowing the harpsichord bass to be more prominent, and the upper strings were likewise modified to allow the harpsichord to be at the forefront of the texture.

Concerto No. 3 in D major, BWV 1054

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1. Allegro 2. Adagio e piano sempre 3. Allegro

Scoring: harpsichord solo, violin I/II, viola, continuo (cello, violone)

Length: c. 17 minutes

The surviving violin concerto in E major, BWV 1042 was the model for this work, which was transposed down a tone to allow the top note E6 to be reached as D6, the common top limit on harpsichords of the time. The opening movement is one of the rare Bach concerto first movements in da capo A–B–A form.

In 1845 Ignaz Moscheles performed the concerto in London.[38]

Concerto No. 4 in A major, BWV 1055

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1. Allegro 2. Larghetto 3. Allegro ma non tanto

Scoring: harpsichord solo, violin I/II, viola, continuo (cello, violone)

Length: c. 14 minutes

While scholars agree that the concerto BWV 1055 is based on a lost original, different theories have been proposed for the instrument Bach used in that original. That it was an oboe d'amore was proposed in 1936 by Donald Tovey,[39] in 1957 by Ulrich Siegele,[35] in 1975 by Wilfried Fischer,[40] and in 2008 by Pieter Dirksen.[36] Alternatively, Wilhelm Mohr argued in 1972 that the original was a concerto for viola d'amore.[41] Most recently, however, in 2015 musicologist Peter Wollny (the director of the Bach Archive in Leipzig) argued that the "entire first movement" may instead "originate as a composition for unaccompanied keyboard instrument," since the movement "is conceived on the basis of the harpsichord as solo instrument, to such an extent that the strings are not even permitted to deploy a ritornello theme of their own, but from the first bar onwards assume their role as accompanists and thus step into the background to enable the solo part to develop unhindered; in the case of a melody instrument like the oboe such a design would be unthinkable."[2]

Wollny notes that whatever the origins, the final work is the only Bach Harpsichord Concerto for which "a complete original set of parts has survived"; included is a "fully figured continuo part," which scholars agree was for a second harpsichord.[2] Wollny sees the second movement as a siciliana and the finale as having the "gait of a rapid minuet."

Concerto No. 5 in F minor, BWV 1056

[edit]
1. Allegro moderato 2. Largo 3. Presto
External audio
audio icon You may hear Bach's:
Concerto for Harpsichord No. 1 in F minor, BWV 1056
Concerto for Harpsichord No. 2 in F major, BWV 1057
Concerto for Harpsichord in G minor, BWV 1058
Concerto for Harpsichord in D minor, BWV 1059
performed by Gustav Leonhardt and the Leonhardt Consort in 1968
Here on archive.org


Scoring: harpsichord solo, violin I/II, viola, continuo (cello, violone)

Length: c. 10 minutes

The outer movements probably come from a violin concerto which was in G minor.

The middle movement is probably from an oboe concerto in F major; is also the sinfonia to the cantata Ich steh mit einem Fuß im Grabe, BWV 156; and closely resembles the opening Andante of a Flute Concerto in G major (TWV 51:G2) by Georg Philipp Telemann in that the soloists play essentially identical notes for the first two-and-a-half measures. Although the chronology cannot be known for certain, Steven Zohn has presented evidence that the Telemann concerto came first, and that Bach intended his movement as an elaboration of his friend Telemann's original.[42] The middle movement was used in the soundtrack for Woody Allen's 1986 film Hannah and Her Sisters.[43]

Concerto No. 6 in F major, BWV 1057

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1. Allegro 2. Andante 3. Allegro assai

Scoring: harpsichord solo, flauto dolce (recorder) I/II, violin I/II, viola, continuo (cello, violone)

This image depicts the soloist passage at m. 106 from the Allegro assai movements in BWV 1057 (above) and BWV 1049 (below). The BWV 1057 part is set for harpsichord, while BWV 1049 is for violin. The violin part uses rapid bariolage and leaps, while the harpsichord part uses equally fast hand-crossing figurations and leaps.
The soloist passage at m. 106 from the third movements in BWV 1057 (above) and BWV 1049 as originally written for violin using bariolage and leaps (below).

Length: c. 17 minutes

An arrangement of Brandenburg Concerto No. 4, BWV 1049, which has a concertino of violin and two recorders. Besides transposing, recorder parts have few modifications, except in the second movement in which most of their melodic function is transferred to the soloist. Bach wrote the harpsichord part as a combination of the violin material from the original concerto and a written out continuo.[44] The virtuosic violin passages from BWV 1049 are reworked into similarly challenging harpsichord material.

Concerto No. 7 in G minor, BWV 1058

[edit]
1. Allegro 2. Andante 3. Allegro assai

Scoring: harpsichord solo, violin I/II, viola, continuo (cello, violone)

Length: c. 14 minutes

Probably Bach's first attempt at writing out a full harpsichord concerto, this is a transcription of the violin concerto in A minor, BWV 1041, one whole tone lower to fit the harpsichord's range. It seems Bach was dissatisfied with this work, the most likely reason being that he did not alter the ripieno parts very much, so the harpsichord was swamped by the orchestra too much to be an effective solo instrument.[15]

Bach did not continue the intended set, which he had marked with 'J.J.' (for Jesu juva, "Jesus, help") at the start of this work, as was his custom for a set of works. He wrote only the short fragment BWV 1059.[15]

In 1845 Ignaz Moscheles performed the concerto in London.[38]

Concerto in D minor, BWV 1059 (fragment)

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Scored for harpsichord, oboe and strings in the autograph manuscript, Bach abandoned this concerto after entering only nine bars. As with the other harpsichord concertos that have corresponding cantata movements (BWV 1052, 1053 and 1056), this fragment corresponds to the opening sinfonia of the cantata Geist und Seele wird verwirret, BWV 35, for alto, obbligato organ, oboes, taille and strings. Rampe (2013) summarises the musicological literature discussing the possibility of a lost instrumental concerto on which the fragment and movements of the cantata might have been based. A reconstruction of an oboe concerto was made in 1983 by Arnold Mehl with the two sinfonias from BWV 35 as outer movements and the opening sinfonia of BWV 156 as slow movement.[45]

Concertos for two harpsichords

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Concerto in C minor, BWV 1060

[edit]
1. Allegro 2. Adagio 3. Allegro

Scoring: harpsichord I/II solo, violin I/II, viola, continuo (cello, violone)

Length: c. 14 minutes

While the existing score is in the form of a concerto for harpsichords and strings, Bach scholars believe it to be a transcription of a lost double concerto in D minor; a reconstructed arrangement of this concerto for two violins or violin and oboe is classified as BWV 1060R.[46] The subtle and masterful way in which the solo instruments blend with the orchestra marks this out as one of the most mature works of Bach's years at Köthen. The middle movement is a cantabile for the solo instruments with orchestral accompaniment.

Concerto in C major, BWV 1061

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1. Allegro 2. Adagio ovvero Largo 3. Fuga

Scoring: harpsichord I/II solo, violin I/II, viola, continuo (cello, violone):[47]

Length: c. 19 minutes (19m:14s) [48]

Of all Bach's harpsichord concertos, this is probably the only one that originated as a harpsichord work without orchestra.[49] The work originated as a concerto for two harpsichords unaccompanied (BWV 1061a, a.k.a. BWV 1061.1,[50] in the manner of the Italian Concerto, BWV 971), and the addition of the orchestral parts (BWV 1061, a.k.a. BWV 1061.2)[51] may not have been by Bach himself.[49] The string orchestra does not fulfill an independent role, and only appears to augment cadences; it is silent in the middle movement.[47] The harpsichords have much dialogue between themselves and play in an antiphonal manner throughout.[47]

Concerto in C minor, BWV 1062

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1. Vivace 2. Largo ma non tanto 3. Allegro assai

Scoring: harpsichord I/II solo, violin I/II, viola, continuo (cello, violone)

Length: c. 15 minutes

The well-known Double Violin Concerto in D minor, BWV 1043 is the basis of this transcription. It was transposed down a tone for the same reason as BWV 1054, so that the top note would be D6.

Concertos for three harpsichords

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Concerto in D minor, BWV 1063

[edit]
External audio
audio icon You may hear Bach's:
Concerto for Three Harpsichords No. 1 in D minor, BWV 1063
Concerto for Three Harpsichords No. 2 in C major, BWV 1064
Concerto for Four Harpsichords in A minor, BWV 1065
performed by Rolf Reinhardt and the Pro Musica Orchestra Stuttgart in 1954
Here on archive.org
1. [no tempo indication] 2. Alla Siciliana 3. Allegro

Scoring: harpsichord I/II/III solo, violin I/II, viola, continuo (cello, violone)

Length: c. 14 minutes

Scholars have yet to settle on the probable scoring and tonality of the concerto on which this was based, though they do think it is, like the others, a transcription.[who?]

Bach's sons may have been involved in the composition of this work. They may have also been involved in the performances of this particular concerto, as Friedrich Konrad Griepenkerl wrote in the foreword to the first edition that was published in 1845 that the work owed its existence "presumably to the fact that the father wanted to give his two eldest sons, W. Friedemann and C.Ph. Emanuel Bach, an opportunity to exercise themselves in all kinds of playing." It is believed to have been composed by 1733 at the latest.[52]

In the mid-nineteenth century the concerto, advertised as Bach's "triple concerto", became part of the concert repertoire of Felix Mendelssohn and his circle. In May 1837, Ignaz Moscheles performed it for the first time in the UK, with Sigismond Thalberg and Julius Benedict in his own concert at the King's Theatre. Instead of performing the triple concerto on harpsichords, the performed it instead on three Erard grand pianofortes. In 1840, Mendelssohn performed it with Franz Liszt and Ferdinand Hiller at the Gewandhaus in Leipzig, where he was director. The programme also included Schubert's "Great" C Major Symphony and some of his own orchestral and choral compositions; Robert Schumann described the concert as "three joyous hours of music such as one does not experience otherwise for years at a time." The concerto was repeated later in the season with Clara Schumann and Moscheles as the other soloists. Mendelssohn also played the concerto in 1844 in the Hanover Square Rooms in London with Moscheles and Thalberg. Charles Edward Horsley recalled Mendelssohn's "electrical" cadenza in a memoire of 1872 as "the most perfect inspiration, which neither before nor since that memorable Thursday afternoon has ever been approached." Moscheles had previously performed the concerto in 1842 at Gresham College in the East End of London with different soloists. After a performance in Dresden in 1845 with Clara Schumann and Hiller, Moscheles recorded in his diary, "My concert today was beyond all measure brilliant ... Bach's Triple Concerto made a great sensation; Madame Schumann played a Cadenza composed by me, Hiller and I extemporized ours."[53]

Concerto in C major, BWV 1064

[edit]
1. Allegro 2. Adagio 3. Allegro assai

Scoring: harpsichord I/II/III solo, violin I/II, viola, continuo (cello, violone)

Length: c. 17 minutes

This concerto was probably based on an original in D major for three violins. A reconstructed arrangement of this concerto for three violins in D major is classified as BWV 1064R. In both forms this concerto shows some similarity to the concerto for two violins/harpsichords, BWV 1043/1062, in the interaction of the concertino group with the ripieno and in the cantabile slow movement.

Concerto in A minor for four harpsichords, BWV 1065

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Incipits of the three movements of Bach's concerto for four harpsichords, BWV 1065
  1. Allegro
  2. Largo
  3. Allegro

Scoring: harpsichord I/II/III/IV solo, violin I/II, viola, continuo (cello, violone)[citation needed]

Length: c. 10 minutes[54]

Bach made a number of transcriptions of Antonio Vivaldi's concertos, especially from his Op. 3 set, entitled L'estro armonico. Bach adapted them for solo harpsichord and solo organ, but for the Concerto for 4 violins in B minor, Op. 3 No. 10, RV 580, he decided upon the unique solution of using four harpsichords and orchestra. This is thus the only orchestral harpsichord concerto by Bach which was not an adaptation of his own material.[citation needed]

The concerto for four harpsichords, strings, and continuo, BWV 1065, was the last of six known transcriptions Bach realised after concertos in Vivaldi's Op. 3. That opus, published in 1711, contains twelve concertos for strings, four of which (Nos. 3, 6, 9 and 12) have a single violin soloist. The accompaniment in these four concertos consists of violins (three parts), violas (two parts), cellos and continuo (figured bass part for violone and harpsichord). Most likely in the period from July 1713 to July 1714, during his tenure as court organist in Weimar, Bach transcribed three of these violin concertos, Nos. 3, 9 and 12, for solo harpsichord (BWV 978, 972 and 976 respectively). Similarly, in the same period, he transcribed two (Nos. 8 and 11) of the four concertos for two violins (Nos. 2, 5, 8 and 11), for unaccompanied organ (BWV 593 and 596). Vivaldi's Op. 3 also contained four concertos for four violins (Nos. 1, 4, 7 and 10). Some two decades after the over twenty Weimar concerto transcriptions for unaccompanied keyboard instruments, Bach returned to L'estro armonico, and transcribed its No. 10, the concerto in B minor for four violins, cello, strings, and continuo, RV 580, to his concerto in A minor for four harpsichords, strings and continuo, BWV 1065.[55]

Bach's transcriptions from Vivaldi's L'estro armonico, Op. 3
No. RV Key Obligato instr. BWV Transcribed for Key
3 310 G major violin 978 harpsichord F major
8 522 A minor two violins 593 organ (or Pedal harpsichord) A minor
9 230 D major violin 972 harpsichord D major
10 580 B minor four violins and cello 1065 four harpsichords, strings and continuo A minor
11 565 D minor two violins and cello 596 organ (or pedal harpsichord) D minor
12 265 E major violin 976 harpsichord C major

RV 580 was published with the same eight parts as the other concertos in L'estro armonico: four violin parts, two viola parts, cello and continuo. The differences in instrumentation between the individual concertos in Vivaldi's Op. 3 only concern which of these eight parts get soloist roles (indicated as obligato in the original publication), and which are accompaniment (ripieno parts, and continuo). For RV 580 the obligato parts are all four violin parts, and the cello part.[55]

In the middle movement, Bach has the four harpsichords playing differently-articulated arpeggios in a very unusual tonal blend, while providing some additional virtuosity and tension in the other movements.[citation needed]

Concertos for harpsichord, flute, and violin

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Concerto in A minor, BWV 1044

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Title page of hand copy of the concerto made by Bach's pupil Johann Friedrich Agricola.[a]
  1. Allegro
  2. Adagio ma non tanto e dolce
  3. Alla breve

Concertino: harpsichord, flute, violin

Ripieno: violin, viola, cello, violone, (harpsichord)

In this concerto for harpsichord, flute and violin, occasionally referred to as Bach's "triple concerto", the harpsichord has the most prominent role and greatest quantity of material. Except for an additional ripieno violin part, the instrumentation in all three movements is identical to that of Brandenburg Concerto No.5 in D major, BWV 1050. Arranged from previous compositions, the concerto is generally considered to date from the period 1729–1741 when Bach was director of the Collegium Musicum in Leipzig and was responsible for mounting weekly concerts of chamber and orchestral music in the Café Zimmermann. Wollny (1997) and Wolff (2007) contain a comprehensive discussion of the concerto, including its history and questions of authenticity. Because one of the earliest surviving manuscripts comes from the library of Frederick the Great and because of post-baroque galant aspects of the instrumental writing—fine gradations in the dynamical markings (pp, p, mp, mf, f), the wider range of the harpsichord part as well as frequent changes between pizzicato and arco in the strings—Wollny has suggested that the arrangement as a concerto might have been intended for Frederick, a keen flautist who employed Bach's son Carl Philipp Emanuel as court harpsichordist; this could imply a later date of composition. Some commentators have questioned the authenticity of the work, although it is now generally accepted.[57][58][59]

The concerto is an example of the "parody technique"—the reworking in new forms of earlier compositions—that Bach practised increasingly in his later years.[60] The first and third movements are adapted from the prelude and fugue in A minor for harpsichord, BWV 894, a large scale work from Bach's period in Weimar:[61]

The prelude and fugue have the structure of the first and last movements of an Italian concerto grosso, which has led to suggestions that they might be transcriptions of a lost instrumental work. In the concerto BWV 1044, Bach reworked both the prelude and fugue around the harpsichord part by adding ripieno ritornello sections.[62] In the first movement there is an eight bar ritornello that begins with the opening semiquaver motif of the prelude, which is then heard in augmented form before breaking into distinctive triplet figures:

This newly composed material, which recurs throughout the movement, creates a contrast with that of the soloists, much of which is directly drawn from the original prelude, especially the harpsichord part. Like the first movement of Brandenburg Concerto No. 5, the virtuosic harpsichord part takes precedence, with some passages from the original extended, some played solo and some omitted. In the solo episodes the flute and violin provide a "small ripieno" accompaniment to the harpsichord, contrasting with the "large ripieno" of the orchestral strings in the tutti sections.[63]

The last movement of the concerto begins with a fugue subject in crotchets and minims in the viola and the bass line of the harpsichord and a countersubject which provides the material for the orchestral ritornello and transforms the original fugue BWV 894/2 into a triple fugue:

At bar 25 the harpsichord enters with the main fugue subject from BWV 894/2—a moto perpetuo in triplets—overlaid by the countersubject of the ritornello.

The fugue subject in the ritornello is "hidden" in the main fugue subject ("soggetto cavato dalle note del tema"): its constituent notes—A, F, E, D, C, B, A, G, A, B—can be picked out in each of the corresponding crotchet and minim groups of triplets in the main subject. Other departures from BWV 894/2 include a number of virtuosic passages in the harpsichord, with demisemiquaver runs, semiquavers in the triplets and finally semiquavers replacing the triplets, culminating in a cadenza for the harpsichord.[64]

The middle movement is a reworking and transposition of material from the slow movement of the sonata for organ in D minor, BWV 527; both movements are thought to be based on a prior lost composition. Like the slow movement of the fifth Brandenburg Concerto, the slow movement of BWV 1044 is scored as a chamber work for the solo instruments. In binary form, the harpsichord alternates in repeats between upper and lower keyboard parts of BWV 527/2; the other melodic keyboard part is played alternately by flute or violin, while the other instrument adds a fragmentary accompaniment in semiquavers (scored as pizzicato for the violin).

As Mann (1989) comments, Bach's son Carl Philipp Emanuel related to his biographer Johann Nikolaus Forkel how his father took pleasure in converting trios into quartets ex tempore ("aus dem Stegereif"): BWV 1044/2 is a prime example. Bach created a complex texture in this movement by juxtaposing the detached melody in the harpsichord with a parallel sustained melody in thirds or sixths in the violin or flute; and in contrast a further layer is added by the delicate pizzicato accompaniment in the fourth voice, —first in the violin and then echoed by the flute—which comes close to imitating the timbre of the harpsichord.[60]

Concerto in D major, BWV 1050 (Brandenburg Concerto No. 5)

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  1. Allegro
  2. Affettuoso
  3. Allegro

Concertino: harpsichord, violin, flute[65]

Ripieno: violin, viola, cello, violone, (harpsichord)

The harpsichord is both a concertino and a ripieno instrument: in the concertino passages the part is obbligato; in the ripieno passages it has a figured bass part and plays continuo.

This concerto makes use of a popular chamber music ensemble of the time (flute, violin, and harpsichord), which Bach used on their own for the middle movement. It is believed that it was written in 1719, to show off a new harpsichord by Michael Mietke which Bach had brought back from Berlin for the Cöthen court. It is also thought that Bach wrote it for a competition at Dresden with the French composer and organist Louis Marchand; in the central movement, Bach uses one of Marchand's themes. Marchand fled before the competition could take place, apparently scared off in the face of Bach's great reputation for virtuosity and improvisation.

The concerto is well suited throughout to showing off the qualities of a fine harpsichord and the virtuosity of its player, but especially in the lengthy solo 'cadenza' to the first movement. It seems almost certain that Bach, considered a great organ and harpsichord virtuoso, was the harpsichord soloist at the premiere. Scholars have seen in this work the origins of the solo keyboard concerto as it is the first example of a concerto with a solo keyboard part.[66][67]

An earlier version, BWV 1050a, has innumerable small differences from its later cousin, but only two main ones: there is no part for cello, and there is a shorter and less elaborate (though harmonically remarkable) harpsichord cadenza in the first movement. (The cello part in BWV 1050, when it differs from the violone part, doubles the left hand of the harpsichord.)

Recordings

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BWV 1052–1065 set

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BWV 1052–1058 set

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Solo part performed on harpsichord, unless otherwise indicated:

BWV 1059

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Salvatore Carchiolo reconstruction (BWV 35, solo parts for harpsichord and oboe):

  • Salvatore Carchiolo, Andrea Mion, Insieme Strumentale di Roma, Giorgio Sasso; 2011; Brilliant Classics 94340

Masato Suzuki reconstruction:

Winifried Radeke reconstruction (BWV 35, solo part for flute):

BWV 1060–1065 set

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Televised

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In 2024, Conrad Tao was televised on PBS performing a Bach keyboard concerto number four with Jonathon Heyward conducting for the program Lincoln Center Presents followed by an encore solo performance of Elliott Carter's "Caténaires" (2006).[69]

Notes

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References

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Sources

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Further reading

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Revisions and contributorsEdit on WikipediaRead on Wikipedia
from Grokipedia
The keyboard concertos by Johann Sebastian Bach (BWV 1052–1065) comprise a set of works for one to four harpsichords—occasionally organ—accompanied by strings and , composed primarily in the 1730s during his tenure as director of the Collegium Musicum in . These include seven concertos and one fragment for solo keyboard (BWV 1052–1059), three for two harpsichords (BWV 1060–1062), two for three harpsichords (BWV 1063–1064), and one for four harpsichords (BWV 1065), with some featuring additional solo instruments such as flutes or . Most originated as transcriptions of earlier, now-lost concertos for , , or other instruments from Bach's Cöthen period (1717–1723), though a few, like the Concerto for two harpsichords in C major (BWV 1061), appear to be original compositions for keyboard. These concertos were created for public performance at weekly gatherings of the Collegium Musicum, which Bach led from to around 1741 at Zimmermann's Coffee House in , where they served to showcase the talents of his students and family members on keyboard. The works reflect Bach's deep engagement with the Italian concerto style, particularly the rhythmic drive and form popularized by Antonio Vivaldi, whose violin concertos Bach had transcribed for solo keyboard as early as 1713–1714 during his years. This influence is evident in the concertos' energetic outer movements and lyrical slow sections, adapted masterfully to highlight the harpsichord's idiomatic capabilities, including intricate passagework and improvised cadenzas. Among the most notable are the solo concertos in (BWV 1052), renowned for its dramatic intensity and virtuoso demands, and in (BWV 1055), originally conceived for around 1721. The multiple-harpsichord works, such as the Concerto for four harpsichords in A minor (BWV 1065)—a transcription of Vivaldi's , Op. 3, No. 10—demonstrate Bach's skill in balancing ensemble interplay and contrapuntal complexity. Collectively, these concertos not only established the solo keyboard concerto as a viable genre but also bridged Bach's earlier instrumental explorations with his later sacred vocal adaptations, where movements were reused in cantatas like Ich habe meine Zuversicht (BWV 188).

History

Composition Context

Upon assuming the position of Cantor at the Thomasschule in Leipzig in 1723, Johann Sebastian Bach expanded his musical activities beyond church duties by taking over direction of the Collegium Musicum in early 1729. This student-led ensemble, originally founded by , performed twice weekly—Fridays in winter and Wednesdays in summer—at Gottfried Zimmermann's coffee house on Katharinenstraße, attracting a middle-class audience with secular instrumental music and cantatas. Bach's leadership revitalized the group, incorporating his own compositions to showcase emerging talents and provide varied programming that included concertos, sinfonias, and overtures. The keyboard concertos, BWV 1052–1057, were primarily composed during Bach's Leipzig tenure between 1733 and 1738, with the surviving autograph manuscript suggesting a fair copy around 1738 based on paper watermarks and handwriting analysis. These works adapted earlier material from Bach's Weimar (1708–1717) and Köthen (1717–1723) periods, where he had composed violin and oboe concertos inspired by Italian models like Antonio Vivaldi; in Leipzig, the shift to keyboard solos accommodated the Collegium's ensemble, which often lacked skilled violinists but featured proficient keyboard players among Bach's students and sons. This transcription approach allowed Bach to repurpose existing orchestral repertoire for the coffee house setting, emphasizing the harpsichord's virtuosic potential. Beyond public entertainment at Zimmermann's, the concertos served pedagogical aims at the Thomasschule, where Bach instructed advanced students in performance and , often featuring his sons Wilhelm Friedemann and Carl Philipp Emanuel as soloists. The pieces facilitated hands-on training in form and ensemble coordination, bridging private lessons with public showcases. Economic strains in 1730s , including fluctuating funeral fees and reduced church endowments—evident in Bach's 1730 letter lamenting income instability—affected programming decisions, prompting reliance on cost-effective adaptations and student performers to sustain the Collegium's concerts amid fewer high-paying events.

Manuscript Sources and Authenticity

The primary manuscript source for Bach's keyboard concertos BWV 1052–1059 is the autograph score D-B Mus.ms. Bach P 234, a collective volume containing fair copies of seven complete concertos for solo (BWV 1052–1058) and an unfinished fragment for the eighth (BWV 1059). This , entirely in Bach's hand, was compiled in the late 1730s during his period, likely as a repertoire collection for performances with the Collegium Musicum. Analysis of the paper watermarks and handwriting supports a dating around 1738, with evidence of revisions added by Bach himself, such as ornaments in the slow movements. Following Bach's death in 1750, the score passed into the estate of his son , whose collection formed the basis of the Sing-Akademie zu Berlin's holdings after its acquisition in 1800. The autograph's history includes significant disruptions during , when the Sing-Akademie archive—containing over 5,000 manuscripts—was evacuated from and ultimately discovered in 1999 in Kiev, , after being missing for over 50 years. It was returned to the Staatsbibliothek zu Berlin-Preußischer Kulturbesitz in 2001, restoring access to this key source. While the autograph provides the definitive versions, some performance materials (parts) for BWV 1052 and BWV 1053 are lost, leading scholars to rely on contemporary copies from Bach's circle, such as Johann Friedrich Agricola's version of BWV 1053, which includes authorized revisions like added embellishments. Ink and paper studies further confirm the 1730s origin for most entries, aligning with Bach's compositional activity in . All of Bach's keyboard concertos are universally accepted as authentic compositions by the composer, with no significant scholarly disputes regarding authorship. However, BWV 1059 stands out as an incomplete arrangement of Bach's own in A minor, BWV 1041, consisting only of the first movement and part of the second, likely abandoned during transcription. The concertos for multiple s (BWV 1060–1065) are preserved in sets of performance parts copied around the 1760s, likely by associates of , as no autograph scores survive. The first printed edition of these concertos appeared in 1838 from the Leipzig firm C.F. Peters (formerly associated with Kistner), marking an early step in the 19th-century Bach revival. A comprehensive critical edition followed in the Bach-Gesellschaft Ausgabe, published between 1851 and 1899, with the harpsichord concertos appearing in Band 17 (edited by Paul Waldersee in 1884), based primarily on the autograph and select copies to establish reliable texts. These editions, drawing on the recovered sources, continue to underpin modern Urtext publications, ensuring fidelity to Bach's intentions.

Stylistic Features

Influences and Form

Bach's keyboard concertos, composed primarily during his Leipzig period in the 1730s, draw heavily from the Italian concerto grosso tradition, most notably Antonio Vivaldi's collection , Op. 3, published in 1711. Bach encountered Vivaldi's innovative style through transcriptions he made in around 1713–1714, adapting several concertos for solo keyboard (BWV 593–596, 972–987), which familiarized him with the genre's core elements. These transcriptions preserved Vivaldi's compact, symmetrical designs while allowing Bach to experiment with keyboard textures, laying the groundwork for his later orchestral adaptations. Central to this adoption is the ritornello form in the fast movements, where an orchestral refrain () alternates with contrasting solo episodes, providing structural unity and momentum. Bach refined Vivaldi's procedures into a more systematic framework, often recalling ritornello motifs in the solo sections to heighten thematic cohesion, as seen across the BWV 1052–1059 set. The slow movements, typically lyrical and expressive, follow Vivaldi's model of intimate, song-like intermezzi, with some incorporating structures akin to operatic arias for added emotional depth. Nearly all the concertos adhere to the standard three-movement layout of fast–slow–fast, a convention Vivaldi helped popularize, which Bach used to balance virtuosic display and contrapuntal elaboration. While rooted in Italian models, Bach's approach incorporates harmonic innovations that distinguish his style, such as heightened and sustained pedal points to build tension and drama, diverging from Vivaldi's generally brighter, more diatonic palette. In his transcriptions, Bach frequently enriched Vivaldi's simpler harmonies with added dissonances and fuller chordal support, enhancing the keyboard's expressive potential. Influences from German contemporaries like and also appear, particularly in rhythmic vitality and rhetorical gestures; for instance, the slow movement of the Concerto, BWV 1056, transforms a concerto by Telemann (TWV 51:G2), integrating it with Bach's polyphonic idiom. Bach's unique contribution lies in weaving dense into the framework, elevating the form beyond mere contrast to a synthesis of soloistic flair and ensemble interplay. These keyboard works mark an evolution from Bach's earlier (BWV 1041–1043), composed in around 1717–1723, several of which served as sources for the Leipzig adaptations. Scholars posit that BWV 1052, for example, derives from a lost in , with the version expanding the solo role through idiomatic flourishes. This progression reflects Bach's shift toward emphasizing the keyboard as a concerto protagonist, influenced by his Collegium Musicum performances, while retaining the orchestral foundations of his -era compositions.

Keyboard Role and Orchestration

In Bach's keyboard concertos, the serves as the primary solo instrument, accompanied by a modest typically consisting of obbligato strings—two , viola, and —and occasionally augmented by woodwinds such as and recorders, resulting in an ensemble of approximately 8–10 players. This configuration reflects Bach's adaptation of earlier or concertos for the keyboard, elevating the harpsichord from its traditional continuo role to a soloist capable of intricate dialogue within the framework. The technical demands on the emphasize idiomatic harpsichord techniques, including frequent manual changes between keyboards to achieve timbral variety and orchestral effects, as well as elaborate ornamentation and passages like rapid arpeggios and scales that exploit the instrument's light action but would be impractical on string instruments like the . These elements demand precise finger independence and relaxed arm positioning to articulate clearly, with ornaments executed through a fingertip-driven keystroke that draws the fingers toward the palm for varied touch between and . Performance balance presents challenges due to the harpsichord's fixed dynamics and plucked tone, which lacks the 's expressive gradations and requires robust continuo support from the and organ to maintain equilibrium with the strings; modern adaptations on , while offering greater , alter the original and can obscure contrapuntal clarity. In single-harpsichord concertos, often dominates with extended virtuosic episodes, whereas multiple-harpsichord versions foster dialogic interplay among the keyboards, creating antiphonal textures that enhance ensemble cohesion. Ornamentation practices in these concertos draw from Bach's guidelines in his 1720s clavier compositions, such as the , where he advocated for tasteful, idiomatic additions realized by the performer to enrich melodic lines without disrupting rhythmic flow, as evidenced in his own embellished transcriptions of concertos like the Oboe Concerto in (BWV 974).

Concertos for a Single Harpsichord

Concerto in D minor, BWV 1052

The Harpsichord Concerto in , BWV 1052, stands as one of Sebastian Bach's most celebrated works in the genre, widely regarded as the most frequently performed among his solo keyboard concertos. It is believed to be a transcription by Bach of a lost composed during his period (ca. 1717–1723), a time when he focused on instrumental music for the court orchestra. The violinistic passages, including rapid scalar runs and double-stopping effects, have been adapted for the , showcasing the instrument's capabilities in a framework with strings and continuo. This adaptation likely occurred around 1734 in , when Bach repurposed earlier material for his Collegium Musicum performances. The concerto comprises three movements in the traditional fast-slow-fast Italian style: an opening Allegro in featuring a dramatic form with virtuosic solo episodes; a lyrical ; and a concluding Allegro in structured as a fugato. The first movement's begins with a bold, jagged theme in unison strings, followed by the harpsichord's intricate episodes that include driving sixteenth-note passages and an extensive cadenza-like flourish toward the end. The slow movement unfolds over a chromatic ground bass in a passacaglia-like pattern, creating an intimate, aria-style dialogue between the soloist and ensemble. The finale builds rhythmic energy through fugal entries on a lively subject, culminating in a concise before the final . Notable for its dramatic opening gestures, the concerto's D minor tonality underscores a sense of pathos and intensity, enhanced by the harpsichord's prominent role in contrapuntal textures. The autograph manuscript, copied by Bach himself around 1734, forms part of a collection of keyboard concertos prepared for performance, with the first movement sharing motivic elements—such as ascending scalar figures—with the Violin Concerto in A minor, BWV 1041. Typically lasting approximately 22 minutes, BWV 1052 exemplifies Bach's mastery in blending virtuosity and emotional depth.

Concerto in E major, BWV 1053

The Harpsichord Concerto in E major, BWV 1053, exemplifies Johann Sebastian Bach's transcription practices, transforming earlier concerted works into keyboard-focused pieces while preserving their expressive lyricism. Composed around 1738, it features a bright E major tonality that conveys joyful and expansive character throughout its three movements. The concerto typically lasts about 18 minutes in performance. The first movement, an Allegro in E major, employs an expansive ritornello form where the orchestra introduces thematic material that the solo harpsichord develops with virtuosic episodes. The second movement, a pastoral Siciliano marked Andante in C-sharp minor, shifts to a lyrical, singing quality with its characteristic dotted rhythms and gentle sway, evoking a serene, reflective mood. The finale, another Allegro in E major, bursts with lively energy in a gigue-like dance rhythm, featuring intricate interplay between soloist and ensemble. Scholars reconstruct BWV 1053 as a transcription from a lost , designated BWV 1053R in , with melodic lines originally suited to woodwind expression. The version adapts these by incorporating decorative runs and embellishments in the solo part, enhancing its idiomatic keyboard flair while retaining the original's woodwind-inspired phrasing. This shares substantial material with two church cantatas: the first movement derives from the of BWV 169 (1726), and the second from its , while the third draws from the of BWV 49 (also 1726). Notable features include an oboe-like obbligato line in the orchestral strings of the opening Allegro, mimicking the soloist's former woodwind role, and the slow movement's lyrical depth with its dotted rhythmic motifs that underscore its essence. The structure, as in Bach's broader style, frames these elements with recurring orchestral refrains. The work is scored for solo , strings, and continuo. Bach's autograph manuscript of BWV 1053 survives in the collection Mus.ms. Bach P 234 at the Berlin State Library, dated circa 1738 and part of a larger fair copy of his harpsichord concertos. This source confirms the concerto's authenticity and provides insights into Bach's revisions for keyboard performance.

Concerto in D major, BWV 1054

The Concerto in D major, BWV 1054, is a transcription for harpsichord, strings, and continuo that Johann Sebastian Bach prepared around 1738 from his earlier Violin Concerto in E major, BWV 1042, composed during his Cöthen period (1717–1723). The work exemplifies Bach's practice of adapting instrumental concertos for keyboard performance in Leipzig's Collegium Musicum settings, with the solo harpsichord part featuring idiomatic and brilliant passagework derived from the violin original. Its D major tonality contributes to a celebratory and festive character, suitable for public concerts, while the overall duration is approximately 16 minutes. The first movement, marked Allegro (though without a tempo indication in the score), follows a ternary form (A–B–A) and opens with three bold staccato chords that establish a fanfare-like introduction in D major. The orchestra presents a lively principal theme, into which the harpsichord enters immediately with virtuosic figurations, including a striking descending thirty-second-note scale that enhances the movement's energetic drive. The second movement, Adagio e piano sempre in B minor, unfolds as a noble and introspective interlude, with the strings providing a meditative accompaniment of long, sustained phrases while the harpsichord elaborates variations featuring expressive appoggiaturas that evoke sighing motifs. The finale, Allegro, adopts a rondo form based on a rapid 3/4 French passpied dance rhythm, incorporating four contrasting episodes that build an energetic and ceremonial momentum, with string motifs echoing hunting horn calls for added vitality. The surviving autograph manuscript, completed around 1738 and partially copied by Bach's son Carl Philipp Emanuel Bach in the mid-1730s, preserves the work in Bach's hand for performance purposes.

Concerto in A major, BWV 1055

The Concerto in A major, BWV 1055, stands as one of Johann Sebastian Bach's keyboard concertos, likely composed around 1738 as part of his efforts to expand the Collegium Musicum's repertoire in Leipzig. It is widely regarded as a transcription of a lost original concerto for oboe d'amore, with the keyboard part adapted to replace the woodwind solo, resulting in a chamber-scale work characterized by intimate dialogue between the soloist and the ensemble. The autograph manuscript dates to circa 1738 and survives as part of Bach's collected scores of keyboard concertos, while reconstructions of the putative original, designated BWV 1055R, draw directly from this material to restore the oboe d'amore role. The key of A major contributes to its refined charm, emphasizing elegant phrasing and subtle expressiveness throughout its approximate 16-minute duration. The concerto comprises three movements in a fast-slow-fast structure, scored for solo harpsichord, strings, and basso continuo, with a notably reduced orchestra lacking winds to foster a graceful, introspective interplay. The opening Allegro unfolds in an elegant ritornello form, featuring flowing melodies driven by a syncopated pulse and virtuosic episodes for the harpsichord that highlight constant sixteenth-note figuration and rhythmic vitality. The central Larghetto, in F-sharp minor and cast in 12/8 meter, presents a serene yet poignant pastoral character through its rocking accompaniment and chromatic descending bass line, evoking an operatic lamento with subtle dynamic contrasts that underscore the soloist's lyrical ornamentation. The finale, Allegro ma non tanto in 3/8 meter, adopts a minuet-like dance rhythm with upward leaps, falling scales, and chromatic modulations, maintaining the work's poised elegance while allowing the harpsichord to engage in lively exchanges with the strings. This concerto's orchestration emphasizes the harpsichord's central role in weaving melodic lines amid the strings' supportive framework, promoting a subdued woodwind-derived elegance distinct from bolder brass-influenced works in Bach's oeuvre. The intimate scale enables nuanced keyboard techniques, such as idiomatic passagework that echoes the original d'amore's style.

Concerto in F minor, BWV 1056

The Concerto in F minor, BWV 1056, stands out among Bach's harpsichord concertos for its rhythmic vitality and composite nature, drawing from multiple earlier sources to create a cohesive yet eclectic work for solo keyboard, strings, and continuo. Composed around 1738, it is the latest in the set of single-harpsichord concertos, with its autograph manuscript reflecting Bach's Leipzig period adaptations for collegium musicum performances. The F minor key lends a melancholic undertone, balanced by energetic drive that underscores the piece's dance-like rhythms and dynamic contrasts. The work comprises three movements. The opening Allegro is perky and vivacious, incorporating French overture-style dotted rhythms that evoke a stately yet playful processional, with the engaging in rhythmic dialogue with the through syncopated motifs and echo effects. This movement derives from the of the 1723 BWV 40, Dazu ist erschienen der Sohn Gottes, where it originally served as an instrumental introduction. The central Largo, in the relative major of A-flat, unfolds as a cantabile, song-like , its expressive melody supported by strings and sustained pedal points, offering poignant lyrical relief; scholars suggest it stems from a lost movement, highlighting Bach's practice of repurposing soloistic lines for keyboard prominence. The concluding Presto is a bustling built on a lively subject, featuring shifts that heighten its contrapuntal energy and propel the ensemble toward a spirited close. This finale originates from material in the BWV 69, Lobe den Herrn, meine Seele, further exemplifying the concerto's mixed sources from Bach's vocal oeuvre. Overall, BWV 1056's hybrid construction—blending cantata-derived outer movements with a potentially slow one—demonstrates Bach's resourceful transcription techniques, resulting in a compact piece lasting about 14 minutes that balances and vigor.

Concerto in F major, BWV 1057

The Concerto in F major, BWV 1057, stands out among Bach's harpsichord concertos for its inclusion of two obbligato recorders (or flutes), alongside the solo harpsichord, strings, and continuo, creating a textured ensemble that highlights woodwind lines evoking pastoral scenes. This work, dating from around 1738, forms part of the autograph manuscript collection of Bach's keyboard concertos compiled between 1737 and 1739. It represents a direct adaptation of the composer's earlier Brandenburg Concerto No. 4 in G major, BWV 1049 (from 1721), transposed down a whole tone to F major and reworking the solo violin part into a prominent harpsichord role while retaining the recorders' melodic contributions. The F major tonality imparts a bucolic cheer, with consistent pastoral motifs threaded throughout, such as the recorders' light, echoing phrases that suggest rural idylls. The concerto typically lasts about 17 minutes in performance. The first movement, Allegro, unfolds in form with a bouncy, energetic theme introduced by the full ensemble, featuring lively dotted rhythms and rapid scalar passages that the embellishes with virtuosic flourishes derived from the original violin's technique. These episodes alternate with the , allowing the recorders to interweave imitative lines that enhance the movement's playful, wind-swept vitality. The second movement, Andante in , shifts to a flowing, lyrical character with a sarabande-like pulse, where the presents gently sighing melodies over a sparse accompaniment, often employing echo effects between the soloist and the recorders for intimate expressiveness. The finale, Allegro, adopts a dance-like vigor in 6/8 meter, resembling a with its buoyant triplets and imitative exchanges, culminating in spirited cadences that unify the concerto's joyful essence. Some reconstructions, denoted as BWV 1057R, explore alternative scorings such as substituting flutes for recorders to emphasize these woodwind-evoking elements.

Concerto in G minor, BWV 1058

The Concerto in G minor, BWV 1058, is a transcription of the sinfonias from the cantata Geist und Seele wird verwirret, BWV 35, composed in 1726 for alto voice with obbligato organ, two oboes, taille, strings, and continuo. The original organ solo part in the sinfonias was adapted for harpsichord, marking an early example of Bach repurposing sacred music for secular keyboard performance around 1735. This adaptation highlights Bach's practice of transcribing lost or earlier works, with the outer movements drawn directly from the cantata's instrumental introductions. The work comprises three movements: an opening Allegro noted for its stormy intensity and driving rhythms that evoke turbulence; a lyrical Andante in B-flat major, which unfolds in an operatic style with the soloist dominating a serene, expressive theme; and a closing Allegro assai, a virtuosic fugato that builds contrapuntal density in a gigue-like 9/8 meter. The G minor tonality contributes to the overall dramatic and turbulent expression, amplifying the concerto's emotional depth through its minor-key framework and dynamic contrasts. The autograph manuscript dates to circa 1735, preserving Bach's notations in the collection of harpsichord concertos. With a typical performance duration of about 13 minutes, BWV 1058 exemplifies Bach's innovative approach to concerto form, blending concerto grosso elements with idiomatic keyboard writing for heightened virtuosity and expressiveness.

Fragment in D minor, BWV 1059

The Fragment in D minor, BWV 1059, survives as a single incomplete movement titled Allegro, comprising 9 bars scored for harpsichord and strings, which breaks off abruptly without resolution. This autograph manuscript, housed in the Staatsbibliothek zu Berlin (Mus. ms. Bach P 234), represents an unfinished attempt by Bach to adapt an earlier violin concerto into a keyboard work, with the violin solo part notated above the harpsichord line to guide the transcription process. Composed around the 1730s during Bach's Leipzig period, the fragment exemplifies his practice of repurposing instrumental works for new ensembles, likely intended for performances with the Collegium Musicum. Its incomplete state underscores Bach's selective approach to completing such adaptations, possibly due to time constraints or shifts in compositional priorities. The manuscript was first documented in the following its transfer from the Sing-Akademie zu to the Königliche Bibliothek in in , where it entered scholarly awareness as part of Bach's collected instrumental works. Notable for its dense and idiomatic writing—evident in the solo line's virtuosic passages and interplay with the string ensemble—the fragment highlights Bach's mastery of form even in nascent stages. The part, however, remains partially sketched, emphasizing the work's transitional character between a presumed original (reconstructed as BWV 1059R) and a fully realized keyboard version. This structure offers significant reconstruction potential, allowing scholars and performers to infer the full movement's architecture from the cues and orchestral framework, bridging Bach's earlier Köthen-era compositions with his later harpsichord-focused output in . At approximately 3 minutes in performance, the fragment's brevity belies its musical depth, serving as a pivotal artifact for understanding Bach's iterative creative process in concerto transcription. Its authenticity is affirmed by the autograph notation, though the abrupt ending invites ongoing musicological exploration into possible completions or related lost works.

Concertos for Two Harpsichords

Concerto in C minor, BWV 1060

The in C minor, BWV 1060, is a transcription for two harpsichords and strings of a lost for and , with its first movement sharing material with the Double Violin Concerto in D minor, BWV 1043. The surviving manuscript dates from around 1736 during Bach's period, reflecting his practice of adapting earlier instrumental works for keyboard soloists in church performances. Composed in C minor, the work conveys intense emotional expression through its minor-key framework and dynamic contrasts. Its total duration is approximately 14 minutes. The concerto follows the standard three-movement form: an opening Allegro featuring antiphonal call-and-response exchanges between the two harpsichords; a central Largo ma non tanto in , marked by chromatic melodic lines and a lyrical texture; and a closing Allegro structured as a lively with intricate contrapuntal entries. In the first movement, the harpsichords alternate thematic statements in a manner, underscoring the antiphonal interplay central to the work's dual-solo . Key features highlight the harpsichords' role in driving the musical conversation, with the soloists often presenting the primary thematic material while the strings offer harmonic support and rhythmic . The slow movement stands out for its dramatic intensity, achieved through sustained melodic exchanges between the harpsichords against a backdrop of strings, creating a poignant, introspective mood. The finale's fugal writing exemplifies Bach's mastery of , weaving the harpsichords into a complex yet energetic web of voices.

Concerto in C major, BWV 1061

The Concerto in , BWV 1061, is a three-movement work for two harpsichords and strings by Johann Sebastian Bach, composed around 1733–34. The movements are structured as follows: an Allegro assai in , an Andante in , and a Vivace in , reflecting a concise concerto form typical of Bach's Leipzig period. The sole surviving autograph-related manuscript, copied by with additions by the composer, dates to circa 1735 and emphasizes the key of for its straightforward, energetic character. This concerto stands out for its shorter scale relative to Bach's other keyboard works, lasting approximately 19 minutes in performance. Scholars have proposed that BWV 1061 may derive from a lost original concerto for or , adapted for harpsichords, though evidence suggests it was primarily conceived as a keyboard piece without orchestral strings in its earliest version (BWV 1061a). Its notable features include brisk outer movements driven by lively between the harpsichords, a simple lyrical slow movement with minimal embellishment, and restrained use of , prioritizing clarity over complexity. These elements align with broader transcription hypotheses for Bach's keyboard concertos, where BWV 1061's unaccompanied harpsichord origins highlight adaptations from potential melodic instrument prototypes.

Concerto in C minor, BWV 1062

The Concerto in C minor, BWV 1062, is a transcription for two harpsichords, strings, and continuo by Johann Sebastian Bach, dating from the late 1730s during his Leipzig period. This work stands out for its extended form that emphasizes elaborate development and contrapuntal depth, with a typical performance duration of around 15 minutes. The autograph manuscript, preserved in the Staatsbibliothek zu Berlin, reflects Bach's compositional practices from circa 1738–1740, when he adapted earlier instrumental works for keyboard soloists to suit performances by his Collegium Musicum. BWV 1062 originates from Bach's earlier Concerto for Two in D minor, BWV 1043, likely composed during his Cöthen years (1717–1723), which Bach transposed and adapted for to highlight the instrument's polyphonic capabilities. In this arrangement, the two harpsichord parts assume the virtuosic violin lines, creating intricate exchanges and dialogic interplay between the soloists amid the string ensemble, a feature that underscores the concerto's emotional intensity in the tonic key of . The overall structure exemplifies poignant contrasts between energetic outer movements and a lyrical central one, contributing to its status as one of Bach's most expressive multiple-keyboard works. The concerto comprises three movements: the opening Allegro, marked by lively form and rapid scalar passages distributed between the harpsichords; a serene Largo ma non tanto (or Andante e in some sources) in the relative major of E-flat, featuring a , aria-like over a walking bass; and a spirited Allegro (or Allegro assai) finale that builds to exuberant fugal entries. These sections showcase Bach's mastery in balancing soloistic brilliance with orchestral support, with the harpsichords engaging in antiphonal dialogues that echo the original violins' independence while exploiting the keyboards' ornamental potential.

Concertos for Three or More Harpsichords

Concerto in D minor for three, BWV 1063

The Concerto in for three harpsichords, BWV 1063, exemplifies Johann Sebastian Bach's mastery of polyphonic writing in a format, composed during his Leipzig period around 1735–1745. Scored for three solo harpsichords with strings and continuo, the work treats the soloists as independent voices in dynamic dialogue, creating a sense of vigorous energy characteristic of the key. Surviving manuscripts date to the , reflecting Bach's practice of preparing music for the Collegium Musicum performances at Zimmermann's coffee house. With a total duration of approximately 15 minutes, BWV 1063 stands out among Bach's multiple-harpsichord for its emphasis on individual solo lines rather than unified ensemble playing. The concerto comprises three movements: an opening Allegro in D minor, a central Alla Siciliana in F major marked alla breve, and a closing Allegro structured as a fugato. The first movement establishes layered dialogues among the harpsichords, with each soloist engaging in intricate exchanges with the orchestra. The second movement shifts to a serene, pastoral tempo, where the harpsichords weave gentle, overlapping lines in a ternary form, highlighting Bach's skill in textural contrast. The final Allegro unfolds as a dense fugal exposition, where the three harpsichords introduce and pursue subjects independently, building to climactic that integrates the seamlessly. This movement's fugato texture underscores the concerto's complex interplay, as the soloists maintain distinct identities while converging in unified resolution. Overall, BWV 1063 demonstrates Bach's techniques and is believed to be a transcription of a lost earlier for three solo instruments. The work's not only showcases technical brilliance but also emotional depth, from energetic outer movements to introspective lyricism.

Concerto in C major for three, BWV 1064

The Concerto in C major for three , BWV 1064, is a three-movement work composed by Johann Sebastian Bach around 1735–1745. The first movement, marked Allegro, opens with a lively orchestral in C major, establishing a grand scale suitable for the key's brightness and the ensemble's sonority. The three enter together, sharing equal melodic and contrapuntal roles that highlight Bach's skill in balancing multiple soloists within a framework. This movement is believed to derive from a lost original concerto for three in , with Bach adapting the violin parts to the idiomatic demands of the , including added ornamentation and keyboard-specific figurations. The second movement, Adagio in , provides a majestic contrast, featuring a lyrical, melody passed among the harpsichords over a sustained . This slow movement, likely original to the keyboard version, emphasizes expressive phrasing and subtle dynamic shifts, creating a serene interlude that underscores the work's emotional depth. The sole surviving manuscript, copied by Johann Friedrich Agricola around 1738–1741 and held in the , confirms the scoring for three harpsichords, s, and continuo, reflecting Bach's Leipzig-period practice of transcribing earlier instrumental works for collegium musicum performances. The finale, Allegro in meter, returns to with energetic imitative entries, where each takes sequential solo episodes amid responses, fostering a sense of dialogue and virtuosic interplay. This movement's fugal elements and rhythmic drive contribute to the concerto's overall poise, distinguishing it through integrated major-key exuberance. The complete work lasts approximately 16–17 minutes, making it a concise yet substantial addition to Bach's keyboard concerto repertoire.

Concerto in A minor for four, BWV 1065

The Concerto in for four harpsichords, BWV 1065, is Johann Sebastian Bach's transcription of Antonio Vivaldi's Concerto for four s in , RV 580, the tenth concerto in Vivaldi's collection , Op. 3, published in in 1711. Bach transposed the work from to , adapting the four parts for harpsichords while preserving the original's energetic Italian concerto style, which exemplifies Vivaldi's influence on Bach's early explorations of concerto form. The resulting piece, scored for four solo harpsichords, strings, and continuo, lasts approximately 16 minutes in performance and dates from a around 1735, likely prepared during Bach's period for his Collegium Musicum. The choice of enhances the work's turbulent virtuosity, emphasizing dramatic contrasts and rapid passagework suited to the harpsichord's capabilities. BWV 1065 consists of three movements: an opening Allegro in form, a central Largo in the relative major of , and a closing Allegro structured as a . In the first movement, the theme recurs throughout, with the four harpsichords taking turns in episodes that highlight their interplay, while Bach enriches Vivaldi's linear writing by adding contrapuntal lines to create greater textural density. The Largo provides lyrical contrast, featuring expressive melodic lines over a simple , transposed to for a brighter tonal color that underscores the harpsichords' ornamental potential. The final Allegro unfolds as a fugal exposition, where Bach expands Vivaldi's contrapuntal seeds into a more intricate web of voices, culminating in a dense polyphonic texture that demands precise synchronization among the soloists. A key aspect of BWV 1065 lies in its adaptation of Vivaldi's violin quartet to four harpsichords, which introduces significant challenges due to the instruments' fixed tuning and lack of blending compared to strings. Bach's additions of not only thicken the texture—transforming Vivaldi's transparent lines into a richer, more complex fabric—but also require the harpsichordists to navigate overlapping voices and rapid exchanges without the sustaining power of bowed instruments, often resulting in a brighter, more percussive sonority. This arrangement amplifies the original's virtuosic demands, as each player must independently articulate bass lines, inner harmonies, and melodic strands simultaneously, posing logistical difficulties in rehearsal and performance, particularly in achieving balance amid the increased .

Triple Concertos with Keyboard

Triple Concerto in A minor, BWV 1044

The Triple Concerto in , BWV 1044, is Johann Sebastian Bach's sole surviving concerto featuring three soloists—, , and —alongside strings and , composed around the 1730s during his period. This work exemplifies Bach's innovative approach to concerto form by elevating the harpsichord to a prominent solo role, engaging in intricate dialogues with the flute and violin that highlight the keyboard's expressive capabilities within a chamber-like texture. The concerto's structure integrates material from Bach's earlier keyboard compositions, transforming solo pieces into a balanced ensemble, with the soloists' interplay creating a sense of intimate collaboration amid the orchestral backdrop. Its A minor key contributes to a poignant expressiveness, blending lyrical depth with rhythmic vitality. The concerto comprises three movements. The opening Allegro and closing are adaptations of the Prelude and Fugue in , BWV 894, originally a solo work from Bach's or Cöthen years (ca. 1710–1717), expanded with added and parts to emphasize the trio's soloistic prominence. The central Adagio ma non tanto e dolce is derived from the slow movement of the for organ in , BWV 527 (ca. 1727), reimagined as a for and without orchestral , fostering a contemplative, cantata-like intimacy through its melodic weaving and subtle dynamic contrasts. This compilation process underscores Bach's recycling technique, where pre-existing keyboard material is repurposed to showcase the 's versatility alongside woodwind and string soloists. Notable features include extended cadenzas for each solo instrument, particularly in the outer movements, where the and alternate virtuosic passages with the , achieving a balanced trio interplay that rivals the orchestral sections. The work's dates to the , likely prepared for performances by Bach's Collegium Musicum, and its total duration is approximately 22 minutes. As Bach's only extant triple incorporating keyboard, BWV 1044 uniquely bridges his solo keyboard oeuvre with multi-soloist orchestral writing, influencing later concerto developments.

Brandenburg Concerto No. 5 in D major, BWV 1050

The Brandenburg Concerto No. 5 in , BWV 1050, stands as a landmark in Johann Sebastian Bach's oeuvre for its pioneering elevation of the from a continuo role to a full-fledged soloist, alongside and , within a framework. Composed around 1719–1720 during Bach's tenure at the court of , the work was finalized in an score dated March 24, 1721, and presented as part of a dedicatory collection to Christian Ludwig, of Brandenburg-Schwedt, in . This manuscript, now housed in the , underscores the concerto's origins in the vibrant musical environment of , where Bach served as and explored instrumental innovations influenced by Italian models like those of Vivaldi. The tonality contributes to the work's brilliant and effervescent character, with a total duration of approximately 21 minutes. The concerto unfolds in three movements, each highlighting the interplay between the concertino—comprising traverso flute, violin, and obbligato harpsichord—and the ripieno strings with continuo. The opening Allegro establishes the soloists' prominence through virtuosic exchanges, with the harpsichord weaving intricate counterpoint against the flute and violin; its role intensifies toward the end, culminating in an extended cadenza of 65 bars that showcases idiomatic keyboard techniques, including rapid scalar passages and ornamental flourishes, effectively transforming the instrument into a concerto protagonist for the first time in Bach's output. This innovation not only anticipates Bach's later harpsichord concertos but also reflects his experimentation with the harpsichord's expressive potential beyond accompaniment. The second movement, Affettuoso, shifts to a lyrical trio sonata texture for the three soloists alone, emphasizing intimate dialogue and affective phrasing in a slower tempo, where the harpsichord provides harmonic support while contributing melodic lines. The finale, another Allegro, returns to a lively dance-like pulse, incorporating fugal elements in the while the soloists interject with decorative episodes; here, the harpsichord's agility shines in its integration with the ensemble, reinforcing the concerto's structural balance. An earlier version, BWV 1050a (ca. 1719), likely performed with a recorder instead of the traverso and featuring a shorter (18 bars), demonstrates Bach's revisions to amplify the harpsichord's soloistic demands and refine the wind instrument's for greater brilliance. These changes, documented in surviving parts from the period, highlight Bach's iterative approach to and form, cementing BWV 1050 as a pivotal advancement in the genre.

Arrangements and Reconstructions

Transcription Hypotheses for Lost Works

Scholars have long hypothesized that many of Bach's keyboard concertos, particularly BWV 1052–1057, originated as transcriptions of lost concertos for or composed during his period (1717–1723). Christoph Wolff's analyses in the , drawing on stylistic features and Bach's compositional practices, link these works to the court's instrumental repertoire, suggesting they were adapted for collegium performances in the 1730s to highlight his students' keyboard skills. For instance, BWV 1052 in is thought to derive from a lost akin to the surviving , BWV 1041, based on shared motivic structures and idiomatic string writing transferred to the . BWV 1058 in provides a clearer case of transcription, with its outer movements directly sourced from the sinfonias of the 1726 Geist und Seele wird verwirret, BWV 35, originally for organ obbligato and strings; these sinfonias themselves likely stem from an earlier , as evidenced by the melodic lines' suitability for woodwind . Similarly, BWV 1060 in C minor for two is a straightforward of the Double in , BWV 1043, transposed and refitted for keyboard, preserving the original's contrapuntal dialogue between soloists. Thematic similarities further support these hypotheses, such as in BWV 1054 in , where the part mirrors the line of the E major , BWV 1042, including identical opening motifs and ornamental flourishes, though debates persist over whether certain passages imply an rather than due to range and phrasing. The absence of original non-keyboard manuscripts is attributed to the dispersal of Bach's estate after his death, with scores passing to his sons Carl Philipp Emanuel and Wilhelm Friedemann, many of which were lost, sold, or destroyed over time; no of a comprehensive inventory survives, but Bach's autograph collection of keyboard concertos (P 232 in the ) indicates he maintained a curated set of these adaptations. Recent post-2000 scholarship has employed digital motif analysis to identify potential matches, strengthening arguments for lost origins without resolving all ambiguities.

Modern Completions and Arrangements

The fragment BWV 1059, consisting of a nine-bar in for , , strings, and continuo, has prompted several modern completions to envision a full . Later, in the , musicologist Werner Breig produced a reconstruction for the Neue Bach-Ausgabe, incorporating two movements adapted from Bach's BWV 35 to complete the work while preserving the original fragment's integrity. Common reconstructions treat it as an (BWV 1059R), with editions by scholars like Wilfried Fischer in the 1970s integrating material from BWV 35 for the outer movements. Twentieth-century arrangements of Bach's keyboard concertos often adapted them for , reflecting evolving performance practices. Ferruccio , in the early 1900s, transcribed several for solo , including BWV 1052 in , emphasizing virtuosic textures and romantic expressiveness to suit the instrument's capabilities. Orchestral expansions have also proliferated, such as Sir Neville Marriner's recordings of BWV 1056 in with the Academy of , where added wind instruments enhance the beyond the original string ensemble. Bach's BWV 1065 in for four harpsichords stands out as his arrangement of Vivaldi's Concerto in for four violins, Op. 3 No. 10 (RV 580), transforming violin lines into idiomatic harpsichord parts. Reverse adaptations have emerged in modern practice, with Vivaldi's original sometimes performed on multiple harpsichords to highlight Bach's interpretive layers, as explored by ensembles like the . In the , editor Peter Wollny contributed to scholarly editions by integrating newly discovered sources, refining urtexts for keyboard concertos and addressing lacunae in transmission. Digital realizations have aided completions of unfinished sections, employing software to generate continuo and orchestral parts in line with conventions. Controversies persist over added movements' authenticity, with Bärenreiter's 2000s Neue Bach-Ausgabe editions favoring conservative scholarly approaches over speculative reconstructions to prioritize verifiable sources.

Performance and Recordings

Historical Performance Practices

In the 18th century, Johann Sebastian Bach's keyboard concertos were performed primarily on the , with instruments by builders such as favored for their robust construction and dynamic capabilities, aligning with Bach's preference for keyboards that could balance against a small ensemble. Although Ruckers harpsichords from the Flemish tradition influenced later builders, Bach's Leipzig performances likely utilized German models like Silbermann's, paired with a gut-string to achieve the intimate timbre typical of ensembles. During his tenure directing the Leipzig Collegium Musicum from to 1737 and beyond, Bach employed one player per part scoring for these concertos, fostering a chamber-like transparency that highlighted the soloist's virtuosity without overwhelming the keyboard. Tempo choices in Bach's allegro movements allowed for flexibility, often guided by the performer's sense of affekt, while slow movements like the largos adhered to conventions of deliberate pacing to emphasize expressive phrasing and melodic lines. Ornamentation was extensively improvised, drawing from idiomatic practices, with performers adding trills, mordents, and passaggi to enhance rhetorical delivery; cadenzas in the concertos were similarly spontaneous, typically concluding with a trill on the dominant before the orchestral . Johann Joachim Quantz's 1752 treatise Versuch einer Anweisung die Flöte traversiere zu spielen provided influential guidelines for ornamenting parts in works like the Triple Concerto BWV 1044 and Brandenburg Concerto No. 5 BWV 1050, advocating tasteful embellishments that respected the flute's transverse design and breath capacities, thereby shaping authentic realizations of these concerto lines. The 19th-century revival of Bach's music, spearheaded by , introduced shifts toward larger-scale performances; in from the 1830s onward, Mendelssohn conducted and soloed in Bach's keyboard concertos using the , which offered greater volume and sustain suited to expanding orchestral forces in concert halls like the . This adaptation, building on Mendelssohn's pivotal 1829 performance of the , marked a transition from chamber intimacy to Romantic-era grandeur, though it diverged from norms by amplifying dynamics and ensemble size. Early 20th-century efforts to reclaim historical authenticity gained momentum through Wanda Landowska's recordings of Bach's keyboard concertos in the and , where she employed a Pleyel grand to revive the instrument's prominence and underscore period-appropriate articulation and . Landowska's interpretations emphasized the 's percussive clarity and rhetorical vitality, influencing the broader movement by prioritizing conventions over 19th-century pianistic traditions. Tempo discrepancies between historical and modern practices remain evident, particularly in largos, which 18th-century performers rendered more slowly—often around half the modern pace—to allow for elaborate ornamentation and affective depth, as inferred from treatises like Quantz's.

Notable Recordings and Interpreters

One of the most influential complete cycles of Bach's keyboard concertos was recorded by Karl Richter in the early 1960s for Archiv Produktion, featuring Richter as soloist on with the Münchener Bach-Orchester, encompassing BWV 1052–1058 and BWV 1060–1065 and emphasizing a robust, Romantic-inflected interpretation that bridged 19th-century traditions with emerging period awareness. Richter also explored versions in some sessions, contributing to ongoing debates about , though his performances set a benchmark for technical precision and dramatic intensity. In the 1980s, and The English Concert advanced (HIP) practices with their recording of the harpsichord concertos (BWV 1052–1058, 1060–1065) on period instruments, released by Archiv Produktion in 1981–1983, prioritizing authentic Baroque timbre, lighter articulation, and ensemble transparency over Richter's heavier approach. This cycle exemplified the post-1970s shift toward HIP, which gained prominence with the rise of specialist ensembles using gut strings and natural horns to evoke 18th-century acoustics. Glenn Gould's 1960s piano recordings of BWV 1052–1056 and 1058, made between 1957 and 1962 with conductors like and Vladimir Golschmann for Columbia Masterworks, showcased Gould's signature interpretive freedom through deliberate tempos, introspective phrasing, and minimalist accompaniment, challenging conventional and sparking discussions on Bach's adaptability to modern pianism. Similarly, András Schiff's 1990s cycle with the Chamber Orchestra of Europe, recorded 1989–1997 for Decca and performed on piano in a chamber setting, highlighted intimate dialogue between soloist and strings, with Schiff's nuanced touch underscoring contrapuntal clarity in works like BWV 1052 and 1056. Masaaki Suzuki and Bach Collegium Japan delivered a period-instrument complete set in the early 2000s on BIS Records (volumes released 2000–2003), with Suzuki and Masato Suzuki as harpsichordists, focusing on precise ornamentation and balanced continuo to reveal Bach's structural ingenuity in multiple-keyboard works like BWV 1060–1065. In the 2010s, Il Gardellino's recording of BWV 1060–1065 (2014, Accent), directed by Marcel Ponseele with multiple harpsichordists including Jan de Win, emphasized vibrant HIP vitality and idiomatic Baroque ensemble playing for the double, triple, and quadruple concertos. Reconstructions of the fragmentary BWV 1059 have featured prominently, with versions proposing an original or conception derived from the surviving fragment and related cantatas, influencing scholarly debates on Bach's lost originals. Post-1970s recording trends reflect a marked pivot to methodologies, with ensembles like The English Concert and Bach Collegium Japan prioritizing period instruments for authenticity, while interpretations by Gould and Schiff sustained a parallel tradition valuing expressive depth. The - debate persists, with favored for its percussive clarity in and for dynamic nuance, as evidenced by Ton Koopman's 1990s Baroque Orchestra cycle (1996–1999, Teldec/Antigua), noted for its excellence in BWV 1052–1065. More recent examples include pianist Gile Bae's 2024 recording of BWV 1052–1056 with the Italian Chamber Orchestra of on Alpha Classics, emphasizing fresh pianistic insights, and Beatrice Rana's 2025 collaboration with the Sinfonietta on Warner Classics, featuring select concertos in a modern chamber style.

References

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