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Range (music)
Range (music)
from Wikipedia
Written range of a saxophone.

In music, the range, or chromatic range, of a musical instrument is the distance from the lowest to the highest pitch it can play. For a singing voice, the equivalent is vocal range. The range of a musical part is the distance between its lowest and highest note.

Compass

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Among British English speakers,[1] and perhaps others,[2] compass means the same thing as chromatic range—the interval between the lowest and highest note attainable by a voice or musical instrument.

Other ranges

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The terms sounding range, written range, designated range, duration range and dynamic range have specific meanings.

The sounding range[3] refers to the pitches produced by an instrument, while the written range[3] refers to the compass (span) of notes written in the sheet music, where the part is sometimes transposed for convenience. A piccolo, for example, typically has a sounding range one octave higher than its written range.[4] The designated range is the set of notes the player should or can achieve while playing. All instruments have a designated range, and all pitched instruments have a playing range. Timbre, dynamics, and duration ranges are interrelated and one may achieve registral range at the expense of timbre. The designated range is thus the range in which a player is expected to have comfortable control of all aspects.

The duration range is the difference between the shortest and longest rhythm used. Dynamic range is the difference between the quietest and loudest volume of an instrument, part or piece of music.

Range limits

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Although woodwind instruments and string instruments have no theoretical upper limit to their range (subject to practical limits), they generally cannot go below their designated range. Brass instruments, on the other hand, can play beyond their designated ranges. Notes lower than the brass instrument's designated range are called pedal tones. The playing range of a brass instrument depends on both the technical limitations of the instrument and the skill of the player.

Classical arrangements rarely make woodwind or brass instruments play beyond their designed range. String musicians play the bottom of their ranges very frequently, but the top of a string instrument's range is rather fuzzy, and it is unusual for a string player to exceed the designated range. It is quite rare for wind musicians to play the extremes of their instruments. The most common exception is that in many 20th century works, pedal tones are called for in bass trombones.

This chart uses standard numberings for octaves where middle C corresponds to C4. In the MIDI language, middle C is referred to as MIDI note number 60.

The lowest note that a pipe organ can sound (with a true pipe) is C−1 (or CCCC), which is 8 Hz, below the range of human hearing and not visible on this chart. However, if acoustic combination (a note and its fifth) counts, the lowest note is C−2 (or CCCCC), which is 4 Hz.

In terms of recording and reproduction, many speakers have a low limit of around 40–60 Hz.

Typical ranges

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:Eighth octave CMiddle C:Eighth octave CMiddle Cgongstruck idiophonetubular bellsstruck idiophonecrotalesglockenspielvibraphonecelestametallophonesxylophonemarimbaxylophonesidiophonestimpanimembranophonespiccolo trumpettrumpetcornetbass trumpettrumpetswagner tubawagner tubaflugelhornalto hornbaritone hornFrench hornhorn (instrument)cimbassotypes of trombonetypes of trombonesoprano trombonealto trombonetenor trombonebass trombonecontrabass trombonetromboneseuphoniumbass tubacontrabass tubasubcontrabass tubatubabrass instrumentsOrgan (music)garklein recordersopranino recordersoprano recorderalto recordertenor recorderbass recordergreat bass recordercontrabass recordersub-great bass recordersub-contrabass recorderRecorder (musical instrument)fipplepiccoloconcert flutealto flutebass flutecontra-alto flutecontrabass flutesubcontrabass flutedouble contrabass flutehyperbass flutewestern concert flute familyside-blown fluteflutesharmonicaharmonicaaccordionharmoniumfree reedsopranissimo saxophonesopranino saxophonesoprano saxophonealto saxophonetenor saxophonebaritone saxophonebass saxophonecontrabass saxophonesubcontrabass saxophonesaxophone familysopranino clarinetsoprano clarinetalto clarinetbass clarinetcontra-alto clarinetcontrabass clarinetoctocontra-alto clarinetoctocontrabass clarinetclarinet familysingle reedoboeoboe d'amorecor anglaisheckelphoneoboesbassooncontrabassoonbassoonsexposeddouble reedwoodwind instrumentsaerophonescymbalumhammered dulcimerpianozitherukulele5-string banjomandolinguitarbaritone guitarbass guitarharpsichordharpPlucked string instrumentviolinviolacellodouble bassoctobassviolin familyBowed string instrumentchordophonessopranomezzo-sopranoaltotenorbaritonebass (voice type)Vocal range

*This chart only displays down to C0, though some pipe organs, such as the Boardwalk Hall Auditorium Organ, extend down to C−1 (one octave below C0). Also, the fundamental frequency of the subcontrabass tuba is B−1.


See also

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References

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Revisions and contributorsEdit on WikipediaRead on Wikipedia
from Grokipedia
In music, the range of a voice or refers to the complete set of pitches, from the lowest to the highest, that it can produce. This span is typically measured in octaves and is crucial for composers when assigning parts, as it determines the feasible notes for performance without strain or distortion. Vocal ranges are classified into categories based on pitch span and timbre, with standard types including (high female), (low female), (high male), and bass (low male), often abbreviated as in choral music. Approximate ranges for these voices are from C4 to A5, from F3 to D5, from C3 to A4, and bass from F2 to E4, though individual singers may extend beyond these in professional contexts. Subtypes such as (A3 to F5) and (G2 to E4) provide further nuance for medium-voiced performers. Related concepts include , which denotes the portion of the range where a voice or instrument sounds most comfortable and is used most frequently in a composition, and register, referring to distinct timbral sections within the overall range, such as chest or in . Instrumental ranges vary widely depending on design and family, with some like offering an extensive span from A0 to C8 (over seven octaves), while others like the cover about four octaves from G3 to approximately A7. and instruments often have practical limits influenced by technique, with extensions possible via transposing or specialized models (e.g., for higher pitches or for lower tones). In , understanding these ranges ensures balanced ensembles, as composers must consider not only the total span but also the instrument's idiomatic capabilities for dynamic expression and blending.

Core Concepts

Definition and Compass

In music theory, the range of a voice or musical instrument refers to the full span of pitches it can produce, extending from the lowest to the highest note achievable. This span encompasses all fundamental pitches within that extent, from the lowest to the highest note achievable. The term "" serves as a primary for range, denoting the chromatic interval between the lowest and highest attainable pitches. Historically used since the late , particularly in contexts, compass describes the complete tonal extent of a voice or instrument. For example, the standard 88-key has a compass from A0 to C8, spanning 7 octaves plus a minor third (87 semitones total). Range is often distinguished between absolute range, which represents the instrument's or voice's full theoretical capability, and practical range, the subset of notes a skilled performer can reliably produce with control and quality. The absolute range includes extreme pitches that may be difficult or rarely used, while the practical range focuses on those commonly employed in performance. , by contrast, refers to the comfortable subset of pitches within the overall range where the voice or instrument performs most effectively. Measurement of range typically employs , a system that labels notes by their and position relative to middle C (C4), standardized at a of 261.63 Hz in tuning with A4 at 440 Hz. This notation allows precise description of spans in semitones (the smallest interval in Western , 12 per ) or octaves (doubling of ), facilitating comparisons across voices and instruments. Tessitura refers to the portion of a singer's or instrumentalist's total range where they can perform most comfortably and with optimal tone quality, typically comprising the majority of pitches in a melodic line and lying within a of the full . This comfortable span often emphasizes the voice's resonant strengths, avoiding extremes that strain production. Closely related to is the , the transitional zones between vocal registers such as (lower, fuller ), (higher, lighter ), and (even lighter, often disconnected). These areas require careful technique to blend seamlessly, as abrupt shifts can disrupt evenness and perceived range. In females, the primary typically occurs around E4 to F4, while in males it is lower, near C4 to D4, influencing how high notes are approached without breaking. Other related terms include ambitus, a historical concept from theory denoting the overall melodic range of a piece or mode, often limited to an octave or less to fit modal structures. Additionally, register describes specific segments of the pitch spectrum, such as vocal modes like chest or head, or in instruments, the pedal register, which accesses the lowest overtones for deep, fundamental tones. In practice, tessitura plays a key role in assigning parts in choral music, ensuring voices are placed where their comfortable range aligns with the composition's demands; for example, alto parts often feature a lower tessitura centered around D3 to C5, steering clear of the higher notes typical in soprano lines to maintain balance and avoid strain. This consideration helps directors match repertoire to ensemble strengths, promoting vocal health and harmonic cohesion.

Vocal Ranges

Voice Classifications

Voice classifications in music categorize the human singing voice based on range, timbre, and tessitura, primarily within Western classical and choral traditions. These systems originated in the era with early polyphonic compositions, where the primary categories were , contralto, , and bass, reflecting the four-part structure that evolved into the modern (soprano, alto, , bass) choral format by the . In 18th-century opera, particularly in , the castrati—male singers castrated before to preserve high vocal registers—dominated leading roles, often performing in or alto ranges due to underdeveloped larynxes, which allowed for exceptional agility and power in the upper tessitura. This practice declined by the early with changing social norms and the rise of natural male voices like the , shifting classifications toward anatomical and acoustic distinctions in both and choral settings. The primary voice types for adult females are soprano, mezzo-soprano, and contralto (also called alto), while males are classified as tenor, baritone, and bass. The soprano, the highest female voice, typically spans C4 to C6, encompassing light and agile subtypes like the coloratura soprano, known for rapid scales and high extensions. The mezzo-soprano ranges from A3 to A5, bridging soprano and contralto with a fuller mid-range suitable for dramatic or lyrical roles. The contralto, the lowest female voice, extends from F3 to F5, characterized by a rich, dark timbre often underrepresented in repertoire. For males, the tenor covers C3 to C5, serving as the highest natural adult male voice with subtypes for lyrical or heroic qualities; the baritone spans A2 to A4, providing a versatile middle range; and the bass reaches E2 to E4, the deepest voice with resonant low tones, including variants like the bass-baritone that overlap into baritone territory for more agile low roles. Classification arises from physiological factors such as vocal fold length, larynx position, and properties, which determine pitch capability and . Shorter, thinner vocal folds in females and higher positions facilitate higher fundamental frequencies, while longer folds and lower in males produce deeper tones; in the vocal tract further shapes the voice's color, allowing for overlaps between types. For instance, a may extend lower than a due to greater vocal mass and power, enabling shared despite range similarities, though —the most comfortable sustained range—influences practical assignment. Extended and non-binary classifications include the , a voice using to access or mezzo ranges, typically G3 to G5, revived in the 20th century for after historical use in all-male choirs. Additionally, the treble category applies to prepubescent children's voices, encompassing high sopranos or boys' unchanged ranges before , commonly used in choral music for their pure, light quality.

Typical Ranges and Examples

The typical ranges for the primary vocal classifications in Western classical and choral provide a foundation for assigning parts in ensembles and solo repertoire. These spans represent the comfortable and extremes most singers in each category can sustain with proper technique, often spanning approximately two octaves or 24 semitones. While individual capabilities vary, these standards derive from operatic and choral traditions, where sopranos handle the highest lines, altos the lower female parts, tenors the upper male voices, and basses the lowest. The following table summarizes these standard ranges, including approximate semitone counts calculated from middle C (C4 = MIDI note 60) for context:
Voice TypeTypical RangeSemitonesOctaves (approx.)
C4 – C6242
F3 – F5242
C3 – C5242
Bass242
These ranges align with common choral and operatic demands, such as in (soprano-alto-tenor-bass) arrangements where parts interlock harmonically without excessive strain. Extended ranges occur in specialized subtypes or genres. sopranos, known for agility in runs and leaps, often extend beyond C6 to F6 or higher in , enabling roles like the Queen of the Night in Mozart's , which requires sustained notes up to F6. In , singers like demonstrate exceptional extension through the , reaching up to G7, as heard in her melismatic passages in "," adding dramatic flair beyond traditional limits. Similarly, basso profondo voices in Russian Orthodox choral traditions, termed oktavists, can descend to Bb1 or lower, producing resonant subharmonics in pieces like Rachmaninoff's , where the lowest parts anchor the harmony. Repertoire frequently tests these ranges to showcase vocal prowess. Operatic arias, such as those for in Puccini's , demand navigation from B2 to C5 with emotional intensity, while choral norms in works like Bach's masses keep sopranos within C4–A5 for blend. In rock, Queen's "" exemplifies tenor demands, spanning Bb2 to Bb5 across operatic, , and sections, requiring seamless register shifts that highlight Freddie Mercury's versatility. Variations appear in non-adult voices and modern genres. Children's treble voices, used in boy choirs before , typically span C4–C6, allowing bright, unified tones in repertoire like Handel's without strain on developing larynxes. In , gender-neutral ranges challenge binary classifications, often encompassing to equivalents (e.g., A3–C5) for inclusive casting, as in non-binary performers exploring androgynous timbres in musical theater or pop, prioritizing vocal function over gendered labels.

Instrumental Ranges

Ranges by Instrument Family

The keyboard family encompasses instruments like the piano and organ, which provide foundational pitch ranges in ensembles due to their ability to cover broad spectra without transposition issues. The standard piano spans from A0 to C8, encompassing over seven octaves and serving as a benchmark for chromatic completeness in Western music. Pipe organs, by contrast, offer variable ranges depending on pipe lengths and registrations, but large instruments typically extend from C−1 (via 32-foot stops) in the pedals to C8 or higher in the manuals, exceeding eight octaves in full configuration. In the strings family, instruments produce sound through bowed or plucked strings, with ranges influenced by string length and tension; non-transposing, their written and sounding pitches align. The violin covers G3 to A7, approximately four octaves, enabling melodic agility in soprano and alto registers. The cello ranges from C2 to E6, over four octaves, bridging tenor and bass roles with rich harmonic potential. The double bass, the lowest string instrument, sounds from E1 to G5 (with harmonics extending higher), written an octave higher, providing foundational bass support. Woodwind instruments in the winds family generate tone via air columns, often with transposing variants; ranges vary by reed type and bore design. The concert flute (non-transposing) sounds from C4 to C7, three octaves, excelling in lyrical upper lines. The B♭ clarinet is transposing, with written range E3 to C7 sounding a whole step lower (D3 to B♭6), spanning over three octaves and known for its to registers. The , non-transposing, ranges from B♭3 to G6, about two and a half octaves, offering penetrating in the range. Brass instruments rely on lip vibration within a mouthpiece and tubing, producing harmonics; many , and ranges emphasize series. The B♭ transposes down a whole step, with written range F♯3 to C6 (sounding E3 to B♭5, extendable to higher via pedals and harmonics), covering about two and a half octaves in standard use. The tenor trombone, non-transposing, spans E2 to B♭4 fundamentally, with slide positions and harmonics reaching F5 or beyond, over three octaves. The contrabass (often B♭ or C) sounds from B♭1 to F4, approximately three octaves, anchoring low frequencies. Distinctions between sounding and written pitches are crucial for transposing instruments, such as the (a high woodwind), which sounds an above its written notation: written C4 to C7 corresponds to sounding C5 to C8.
Instrument FamilyRepresentative InstrumentTypical Sounding RangeTransposition Notes
KeyboardA0–C8None
KeyboardOrganC−1–C8+None
StringsG3–A7None
StringsC2–E6None
StringsE1–G5 (harmonics higher)Written octave higher
WindsC4–C7None
WindsB♭ ClarinetD3–B♭6Whole step down
WindsB♭3–G6None
BrassB♭ TrumpetE3–B♭5 (extendable)Whole step down
BrassTenor TromboneE2–F5None
BrassB♭1–F4Varies (B♭ or C)

Limits and Extensions

The lower limits of instrumental ranges are primarily governed by acoustic constraints, such as the physical dimensions of the instrument and the physics of sound production. For woodwind instruments like the , the lowest playable note is B♭0 (approximately 29 ), determined by the tube length of about 5.5 meters, which sets the fundamental frequency. In string instruments, lower pitches are achieved by increasing string length or reducing tension, but excessive reduction in tension leads to insufficient vibration amplitude for audible sound; theoretically, there is no absolute lower limit for strings or certain woodwinds, though practical constraints arise from the human hearing threshold of around 20 . Upper limits are similarly bounded by physiological and acoustic factors, with no strict theoretical cap but diminishing returns due to performer and sound quality degradation. In brass instruments like the , high notes such as C6 (about 1046 Hz) are produced through increased lip tension and air stream velocity, enabling the lips to vibrate at over 1000 cycles per second to excite higher harmonics in the instrument's . For string instruments, such as the guitar, upper extensions rely on harmonics, which can theoretically reach frequencies like E8 (approximately 5274 Hz) on the high E , though practical playability is limited by finger precision and string response. Techniques to extend beyond standard ranges include pedal tones in instruments, where performers buzz the lips loosely to produce sub-fundamental pitches; for example, the BB♭ tuba can achieve B♭0 (around 29 Hz) as a pedal tone below its nominal fundamental. In woodwinds, overblowing—adjusting and air pressure to favor higher harmonics—allows access to registers above the fundamental series. String players employ , retuning strings to lower or higher pitches, to expand the for specific compositions, such as lowering the lowest string on a to G2. Rare extremes push these boundaries further, exemplified by the double contrabass flute, which reaches down to C1 (approximately 32.7 Hz) through its extended tubing of nearly 5 meters, and the , capable of C0 (16.35 Hz), approaching the edge of human audibility with its 15-meter length.

Influencing Factors

Physiological and Technical Aspects

The physiological foundation of vocal range lies in the larynx, where the vocal folds' vibration produces sound waves whose frequency corresponds to pitch. These folds, when adducted and subjected to subglottal pressure, oscillate at rates spanning approximately 80 Hz for bass registers to over 1100 Hz for soprano fundamentals, enabling the full spectrum of human vocal production. Aging alters this physiology through laryngeal muscle atrophy, vocal fold stiffening, and reduced elasticity, often resulting in a contracted range after age 50 as glottal closure becomes less efficient and vibration amplitude diminishes. Health maintenance, particularly hydration, supports optimal function; systemic or superficial dehydration elevates phonation threshold pressure and narrows the vocal range profile by impairing mucosal wave propagation and fold pliability. Instrumental range similarly depends on biomechanical interactions. In brass and wind instruments, embouchure technique governs lip as a reed-like oscillator, with determined by lip tension and airflow, allowing sustained oscillations up to over 1000 Hz for high-register notes. For string instruments, bowing pressure modulates the stick-slip at the bow- contact, sustaining periodic motion that generates harmonics; optimal pressure maintains Helmholtz , while variations adjust and timbral brightness to access the instrument's full pitch span. Breath control underpins sustain in aerophones, regulating subglottal-like pressure to stabilize airflow and prevent fatigue during extended across registers. Targeted training refines these physiological and technical elements to extend range. Vocal exercises, such as sirens bridging chest and head registers or arpeggios with controlled vowel modifications, expand the passaggio by improving coordination and reducing register breaks. In trumpet performance, long-tone practice enhances endurance through gradual muscle conditioning, enabling reliable access to demanding pitches like double high C without strain. At a fundamental level, the physics of pitch generation in strings and pipes illustrates these constraints conceptually: the fundamental frequency is f=v2Lf = \frac{v}{2L}, where vv is the wave propagation speed and LL is the vibrating length, such that shorter effective lengths produce higher pitches limited by material and anatomical boundaries.

Historical and Modern Developments

In the Baroque era, vocal music placed significant emphasis on high sopranos and castrati, whose preserved prepubescent vocal cords enabled ranges extending above high C6 (approximately 1046 Hz), with renowned performers like Farinelli achieving spans from C3 to D6, exceeding three octaves. This contrasted with instrumental limitations, such as the soprano recorder's typical range of C5 to D7 (or occasionally higher with overblowing), which suited consort music but lacked the dynamic breadth of later developments. The 19th-century Romantic period expanded vocal demands, particularly through Wagnerian , where heldentenors were required to sustain powerful tones up to B4 in roles like , pushing beyond traditional limits of C3 to C5 and incorporating baritonal depth down to in some cases. Orchestral writing evolved similarly, with composers like Wagner demanding greater instrumental versatility, though brass sections remained constrained compared to vocal feats. In the 20th century, and introduced , a wordless improvisational technique that extended vocal ranges through instrumental mimicry; , for instance, demonstrated a three-octave span while employing scat to navigate rapid chromatic runs and high-altitude phrases beyond standard lyrical boundaries. Orchestrally, Mahler's symphonies intensified requirements, incorporating pedal tones as low as G1 to Bb1 on and to achieve profound sonic depth, as in the chorales of Symphony No. 2, thereby broadening the ensemble's effective range. Contemporary developments have transcended physiological limits via electronic instruments; synthesizers using the standard generate frequencies from approximately 8 Hz (MIDI note 0) to over 12 kHz ( note 127), often extending to the full human auditory spectrum of 20 Hz to 20 kHz, unconstrained by physical acoustics. In , extended techniques like multiphonics—produced through alternative fingerings and adjustments—allow simultaneous multiple pitches, such as chordal intervals (e.g., a B major triad), effectively layering harmonics to simulate expanded timbral ranges. Digital tools further simulate impossible vocal extents; pitch-shifting algorithms in production software, akin to Auto-Tune's capabilities, alter recorded voices to reach frequencies or registers unattainable naturally, such as shifting a to altitudes for creative effects. These innovations are bounded by human perception, limited to 20 Hz–20 kHz in optimal conditions, beyond which musical ranges lose efficacy.

References

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