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Prelude and Fugue in C minor, BWV 847
Prelude and Fugue in C minor, BWV 847
Prelude and Fugue in C minor, BWV 847
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The Prelude and Fugue in C minor, BWV 847, is a keyboard composition written by Johann Sebastian Bach. It is the second prelude and fugue in the first book of The Well-Tempered Clavier, a series of 48 preludes and fugues by the composer.

Analysis

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Prelude

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The prelude is 38 bars long, and consists mostly of a repeating motif. The motif consists of running sixteenth notes in the form of broken chords in both hands. Below are the first four bars of the prelude:

{ << \new PianoStaff << \new Staff \relative c'' { \clef treble \key c \minor \time 4/4 \set Score.tempoHideNote = ##t \tempo 4 = 116 c16 es, d es c es d es c' es, d es c es d es | as16 f e f c f e f as f e f c f e f | b16 f es f d f es f b f es f d f es f | c'16 g f g es g f g c g f g es g f g | } \new Staff \relative c { \clef bass \key c \minor \time 4/4 c16 g' f g es g f g c, g' f g es g f g | c,16 as' g as f as g as c, as' g as f as g as | c,16 as' g as f as g as c, as' g as f as g as | c,16 es d es g es d es c es d es g es d es | } >> >> }

The prelude continues like so for 33 bars, with different harmony and changes of key. The coda begins at the 34th bar, where a sudden change of texture and tempo occurs. In the first bar of the coda, an arpeggiated chord is followed by a rapid succession of thirty-second notes. This new motif is repeated twice, after which a succession of sixteenth notes ends the prelude on a Picardy third.

Fugue

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The fugue is 31 bars long, and is written for 3 voices. Below is the two measure subject of the fugue, which starts in the middle voice:

{ << \new PianoStaff << \new Staff << \clef treble \key c \minor \time 4/4 \set Score.tempoHideNote = ##t \tempo 4 = 80 \new Voice \relative c'' { \voiceOne R1 | R1 | } \new Voice \relative c'' { \voiceTwo r8 c16 b c8 g as c16 b c8 d | g,8 c16 b c8 d f,16 g as4 g16 f | es16 } >> \new Staff << \clef bass \key c \minor \time 4/4 \new Voice \relative c' { R1 | R1 | s16 } >> >> >> }

Just like most fugues in the baroque period, the subject is then repeated in the top voice in the dominant key (G minor), and then repeated once more in the lowest voice, again in the home key. The fugue then continues with a development, and then another repetition of the subject in the home key. Just like the prelude, the fugue ends with a Picardy third.

References

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Prelude and Fugue in C minor, BWV 847

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The Prelude and Fugue in C minor, BWV 847, is the second keyboard composition in the cycle of 24 paired works that comprise Johann Sebastian Bach's , Book 1 (BWV 846–869), a seminal collection demonstrating the potential of the well-tempered tuning system across all major and minor keys. Composed in the early as part of the fair copy prepared during Bach's tenure as in , the piece pairs a harmonically driven prelude with a compact three-voice , both in common time and scored for solo keyboard (clavier), showcasing Bach's innovative approach to form, , and motivic unity. The prelude unfolds over 38 measures in a texture dominated by relentless 16th-note arpeggios, which outline straightforward chord progressions such as i–iv⁶⁴–vii°⁷–i, creating an energetic and mechanical drive punctuated by dissonant passing notes and suspensions. It divides into three periods: the first (bars 1–14) establishes the tonic pedal in C minor before modulating to the relative major of ; the second (bars 14–28) develops with a dominant pedal and further harmonic shifts; and the third (bars 28–38) resolves via tonic and dominant pedals, ending on the dominant to prepare the . A recurring three-note figure ties the prelude motivically to the ensuing , while the overall arpeggiated style evokes improvisatory traditions adapted into a rigorously structured form. The fugue, spanning 28 measures, employs a tonal structure in three voices—soprano, alto, and bass—with the subject introduced in the alto (bars 1–3) on the tonic note C, emphasizing the dominant G and concluding on the mediant for rhythmic propulsion. The exposition continues with a tonal answer in the soprano (bars 3–5), a codetta (bars 5–7), and the subject's real entry in the bass (bars 7–9), accompanied by two countersubjects in double counterpoint that provide melodic contrast and return throughout. Four episodes (bars 9–11, 13–14, 17–20, and 22–26) develop fragments of the subject, modulating to related keys like E-flat major and G minor, before a final recapitulation in the bass (bars 26–31) over a tonic pedal, culminating in a coda with a tierce de Picardie for an affirmative major resolution. This fugue's economy and independence of voices highlight Bach's contrapuntal precision, making BWV 847 a cornerstone of the Well-Tempered Clavier's pedagogical and artistic legacy.

Composition and Historical Context

Background in The Well-Tempered Clavier

The Prelude and Fugue in C minor, BWV 847, serves as the second pair in Book 1 of Johann Sebastian Bach's The Well-Tempered Clavier, following the opening Prelude and Fugue in C major, BWV 846. This collection, comprising 24 pairs of preludes and fugues in all major and minor keys, was composed around 1722 during Bach's tenure as Kapellmeister at the court of Prince Leopold of Anhalt-Köthen, a period marked by his focus on instrumental music free from the liturgical constraints of his earlier church positions. The primary purpose of The Well-Tempered Clavier was to showcase the possibilities of well-tempered tuning systems, which equalize intervals across the chromatic scale to enable modulation through all 24 keys without the need for retuning the instrument, a significant advancement over earlier meantone tunings that restricted playability in remote keys. Bach's work demonstrated this tuning's practicality for keyboard composition and performance, influencing subsequent developments in temperament and keyboard pedagogy. Bach drew inspiration for the collection from his earlier Clavierbüchlein für , begun in 1720 as a pedagogical for his eldest , which included preliminary versions of several preludes later refined for . Additionally, Bach's keyboard style reflects influences from North German and South German composers, including the contrapuntal rigor of Johann Jakob Froberger's suites and toccatas, the chaconne-like structures in Johann Pachelbel's variations, and the improvisatory preludes and fugal techniques of Dieterich Buxtehude's organ works. Intended for keyboard instruments of the era, the pieces were composed for or , with their dynamic subtlety and expressive range suiting the clavichord's touch sensitivity while leveraging the 's clarity in ; modern performances often adapt them to for its greater expressive capabilities.

Manuscript and Publication History

The primary source for the Prelude and Fugue in C minor, BWV 847, is the fair copy of The Well-Tempered Clavier, Book 1 (BWV 846–869), designated Mus. ms. Bach P 200 and held at the Staatsbibliothek zu – Preußischer Kulturbesitz. This , written in Bach's hand, dates to around 1722 and served as a presentation volume with a inscribed by the . No complete of the individual pieces survives independently, but P 200 provides the authoritative text for BWV 847, with the prelude and appearing on folios 6v–8r. During Bach's lifetime and shortly after, manuscript copies of Book 1 circulated widely among his pupils and contemporaries to aid teaching and performance. Notable examples include a copy by the and Johann Peter Kellner (D-B Mus. ms. Bach P 1082), produced around 1725, which preserves BWV 847 with minimal deviations from the fair copy. These handwritten transmissions ensured the work's dissemination before printing, though they occasionally introduced scribal errors in ornamentation or note values that later editions had to reconcile. The first printed edition of Book 1, encompassing BWV 847, appeared in 1801–1802 amid a surge of interest in Bach's keyboard music during the early . Publishers such as Hoffmeister & Kühnel (Vienna/Leipzig, 1801, plate no. 53), Nikolaus Simrock (Bonn, 1801), and J.J. Nägeli (Zurich, 1801) issued competing versions based on available manuscripts, marking the work's entry into wide commercial availability. These editions often incorporated interpretive additions like dynamic markings and pedal indications absent from the sources, reflecting emerging Romantic performance practices. Subsequent editorial efforts built on these foundations. In 1880, Hans Bischoff produced a scholarly edition for Breitkopf & Härtel (Leipzig, plate B.W. V), which aimed for fidelity to the manuscripts while adding fingerings and phrasing suited to 19th-century pianism; this version influenced generations of performers despite its interpretive liberties. Modern urtext editions prioritize source-critical accuracy: Bärenreiter's version (BA 5241, edited by Alfred Dürr, first published 1962 as part of the New Bach Edition) draws directly from P 200 and contemporary copies to eliminate Romantic-era accretions, while Henle Verlag's urtext (HN 14, revised 1997 from an original 1953 base by Carl Herrmann) similarly restores the bare text with critical commentary. Source comparisons reveal a stable core text for BWV 847, with variants limited to minor details such as added slurs in the fugue's later entries (e.g., in Kellner's copy) or absent dynamics in (consistent across primary manuscripts). No substantive musical differences affect the structure or , allowing modern editions to present a unified reading.

Description of the Work

The Prelude

The Prelude in C minor, BWV 847, serves as the second prelude in Book 1 of Johann Sebastian Bach's , composed around 1722. It spans 38 bars in common time, establishing a lively pace from the outset through its style. This piece is characterized by continuous sixteenth-note broken chords distributed between both hands, creating an energetic and driving momentum that sustains throughout. The structure unfolds in a continuous flow without distinct formal sections, relying on repetition and intensification to build emotional depth, though it can be divided into three periods based on underlying pedal points in the tonic and dominant. The homophonic texture emphasizes chordal foundations, with arpeggiated figures that evoke the idiomatic style of Italian concertos, such as those by Antonio Vivaldi, through their rippling, ornamental quality. These elements contribute to a sense of forward propulsion, drawing the listener into an unbroken stream of sound, with a recurring three-note figure providing motivic unity to the following . Toward the conclusion, a brief coda in bars 34–38 introduces slower half-notes for contrast, marked adagio before returning to allegro, ending on the dominant chord to prepare for the . The right hand explores a wide range from low C to high G, showcasing the keyboard's expressive potential. This prelude's reliance on broken chords and clarity of line makes it particularly well-suited to the , where the instrument's plucked tone articulates the rapid figurations with precision.

The Fugue

The fugue in C minor, BWV 847, is a three-voice composition comprising 31 bars in common time. The subject spans three bars and features a melodic line beginning on the tonic, emphasizing the dominant, and ending on the , establishing a solemn and rhythmic character from its initial presentation. The basic structure opens with the exposition (bars 1–8), where the subject appears in the alto voice in C minor, followed immediately by the tonal answer in the soprano voice in , and concluding with the subject's entry in the bass voice in C minor. Subsequent episodes (bars 9–12, 13–16, 17–21, and 22–28) develop motifs from the subject and countersubjects through sequential patterns, facilitating further imitative entries that explore related keys before returning to the tonic. The work closes with a codetta (bars 29–31) over a tonic pedal, resolving to a in C major. Key features of the fugue include its strict contrapuntal writing, evident in the consistent use of two countersubjects accompanying the subject entries in , , and back to . Stretti, involving overlapping subject entries, occur in later bars such as 17–19 and 25–27, heightening the contrapuntal . The texture remains polyphonic throughout, with the voices maintaining independence via invertible that allows motifs to exchange between parts without disrupting the harmonic framework.

Musical Analysis

Prelude Analysis

The Prelude in C minor, BWV 847, opens with a broken-chord motif comprising the notes C, E, G, and B♭ in descending configuration, recurring as an ostinato-like rhythmic drive that sustains throughout most of the piece. This motif undergoes subtle variations, including inversions that alter its intervallic shape and rhythmic adjustments that introduce passing dissonances, enhancing the forward momentum while maintaining textural consistency in the running sixteenth notes. Harmonically, the work commences in C minor, progressing through a circle-of-fifths sequence that facilitates brief modulations to (around bar 7) and (bar 13), thereby expanding the tonal palette without disrupting the underlying chordal foundation. Tension accumulates via pedal points on the tonic (bars 1–6) and dominant (bars 28–33), culminating in explicit dominant preparation in bars 30–33, where the prolonged G pedal intensifies the lead-in to the . A marked textural shift occurs in the coda (bars 34–38), where the incessant broken-chord figuration yields to homorhythmic block chords over a tonic pedal, but ends on the dominant (V of ) to prepare the . This transition underscores the prelude's affective depth in the minor key. Stylistically, the prelude's unceasing sixteenth-note texture draws on the characteristic of Vivaldi's concerto allegros, adapted here to keyboard without imitative , thereby underscoring a brooding, dissonant mood suited to 's expressive potential. A recurring three-note figure also ties the prelude motivically to the .

Fugue Analysis

The fugue in , BWV 847, is a three-voice composition that exemplifies Bach's mastery of contrapuntal writing, maintaining voice independence throughout most of its 31 bars until the final two bars resolve into chords. The subject enters in the voice in the tonic () across bars 1–3, featuring a descending diatonic line from C to the tonic below: C–B♭–A♭–G–F–E♭–D–C, with rhythmic emphasis on the dominant G in bar 2. A countersubject accompanies the tonal answer in the voice starting in bar 3 (dominant, ), ascending in parallel thirds relative to the subject and designed for invertibility at the 12th, allowing flexible voice placement above or below the subject. The exposition unfolds in bars 1–8 with real entries: the subject in the (bar 1, ), the tonal answer in the (bar 3, ), and the subject in the bass (bar 7, ), connected by a codetta in bars 5–6 that fragments motivic elements from the subject. Subsequent episodes—bars 9–10, 13–14, 17–19, and 22–26—develop the material through sequences derived from the subject's motifs, facilitating modulations and maintaining contrapuntal momentum without full subject statements. Modulatorily, the fugue tonicizes the relative major (E♭ major) in its middle section during episodes and later entries, providing contrast to the minor mode before returning to C minor via the subdominant (F minor). The final cadence in bars 29–31 reinforces the tonic with a , featuring a final subject statement in the (bars 26–28), and culminating in a that resolves to for an affirmative close. Among contrapuntal devices, augmentation is absent, but occurs in the sequential treatment of tail motifs during episodes, creating rhythmic variety; the three-voice texture enables dense and overlapping without overcrowding, showcasing economical yet intricate .

Performance and Reception

Notable Performances and Recordings

The Prelude and Fugue in C minor, BWV 847, from the first book of The Well-Tempered Clavier, entered the performance repertoire through private settings during Bach's lifetime, with evidence suggesting it was played by his students in Leipzig after its completion around 1722, as the collection served as instructional material for advanced keyboard pupils. In the 19th century, Felix Mendelssohn played a pivotal role in reviving interest in Bach's keyboard works, including selections from The Well-Tempered Clavier, which helped transition the pieces from pedagogical tools to public performance staples. Among landmark recordings, Glenn Gould's 1962 Columbia release on piano stands out for its crisp, harpsichord-emulating articulation and rhythmic drive, capturing the prelude's perpetual motion and the fugue's contrapuntal intensity in a manner that influenced subsequent interpretations. Rosalyn Tureck's 1953 Decca recording on piano emphasized the work's structural with a measured, analytical approach, reflecting her scholarly dedication to Bach's . András Schiff's 1985 Decca cycle on piano highlighted nuanced phrasing and dynamic subtlety, bringing emotional depth to the prelude's arpeggiated flow and the fugue's episodic development. Modern recordings continue to explore interpretive diversity. Angela Hewitt's 1997 Hyperion recording on piano adopted a lyrical, romantic tempo, enhancing the prelude's improvisatory feel and the fugue's dramatic entries with expressive pedaling. Pierre-Laurent Aimard's 2008 Warner Classics recording on piano incorporated historically informed insights, delivering precise voicing and rhythmic vitality suited to the work's technical demands. Víkingur Ólafsson's 2018 Deutsche Grammophon album featured a vibrant piano rendition, blending clarity with subtle rubato to underscore the prelude's ostinato patterns and the fugue's motivic interplay. Performances on period instruments favor the for its authenticity, producing a brighter, more incisive tone that accentuates the , as heard in Trevor Pinnock's Archiv Produktion cycle from the . In contrast, versions leverage sustain and touch for greater expressivity, allowing for varied articulations in the prelude's broken chords and fugal voices. Orchestral transcriptions are less common but notable; arranged the for , with his circa 1930 Philadelphia Orchestra recording emphasizing symphonic grandeur through expanded textures and brass highlights. In recent years, new recordings have continued to highlight the work's versatility. Pierre-Laurent Aimard's 2025 Pentatone release of Book II extends his exploration of the cycle with fresh insights into contrapuntal voicing.

Interpretations and Legacy

The Prelude and Fugue in C minor, BWV 847, has garnered significant analytical attention in the 20th century, particularly through Heinrich Schenker's influential theories, which emphasize the work's organic unity and underlying tonal structure. In his of the , published in the 1920s as part of Das Meisterwerk in der Musik, Schenker demonstrates how the contrapuntal voices interweave to form a coherent whole, revealing Bach's masterful prolongation of the tonic through voice-leading and linear progressions. Similarly, his examination of the prelude underscores its motivic development as an expression of fundamental tonal forces, a perspective that has shaped subsequent Schenkerian interpretations of Bach's keyboard works. The piece's dramatic intensity in the minor key has also resonated beyond classical analysis, influencing improvisational practices in . Pianist , who intensively studied Bach's Well-Tempered Clavier during his formative years, drew on its contrapuntal textures and harmonic depth to inform his harmonic voicings and melodic elaborations, as evident in his trio recordings where Bach-inspired enhances spontaneous invention. As a cornerstone of Bach's oeuvre, BWV 847 remains frequently anthologized in pedagogical editions and serves as an educational staple for studying counterpoint, with its three-voice fugue exemplifying stretto, inversion, and episodic development in classroom analyses. Its adaptability has led to numerous transcriptions for other instruments, extending its reach into diverse repertoires and underscoring its enduring cultural significance.

References

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