Clarinet
The clarinet has significant intonation challenges in the throat tone region (G4-Bb4) and across the break. Voicing and embouchure control are essential for good intonation.
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Common Pitch Tendencies
- Throat tones (G4-Bb4) are notoriously sharp - the #1 problem area
- Clarion register (B4-C6) is generally most stable
- Altissimo register tends sharp
- Chalumeau register can be flat if unsupported
- Voicing (tongue position) dramatically affects pitch
- Barrel length is the primary tuning adjustment
- Loud dynamics tend flat; soft dynamics tend sharp (the reverse of flute) — voice down and keep air moving as you taper
- Register key notes need careful voicing attention
Temperature & Humidity
A cold clarinet plays flat and comes up as warm breath heats the air in the bore. Allow 5-10 minutes. That pitch effect comes from the air, so it applies to wood and plastic alike. The material difference is crack risk: let a cold wooden clarinet reach room temperature (open the case, or warm the joints in your hands) before blowing warm air through it, because sudden temperature and humidity changes are a leading cause of cracks. Plastic and composite bodies do not crack this way. Never leave the instrument in extreme temperatures.
Register Guide
Chalumeau
Chalumeau register (E3–F#4): Naturally stable. Flat tendency only if breath support is insufficient. Keep consistent air speed and open throat.
Throat Tones
Throat tones (G4–Bb4): The most problematic register. G4 can be +20¢ sharp. Use “AW” voicing (tongue low and back), relaxed embouchure, and slightly faster air. Pulling the barrel can help globally but doesn't fix throat tones in isolation.
Clarion
Clarion register (B4–C6): Most stable register. Consistent high "EE" voicing keeps pitch in line; relax toward "AW" only if the top of the clarion (Bb5–C6) runs sharp. This is where your sound and intonation should feel most natural.
Altissimo
Altissimo register (C#6+): All notes tend sharp. Keep the tongue high enough for the notes to speak, then shade the vowel from "EE" toward "OO" to bring pitch down — never bite. Different fingerings work on different clarinets — find what works on yours.
Fingering Chart
Every note in written pitch, the standard fingering a teacher would start you on. Filled keys are pressed, half-filled is a half-hole, outlined keys stay open. Alternate fingerings are drawn in the table below.
Note-by-Note Tendencies
| Note | Fingering / Position | Tendency | Adjustment |
|---|---|---|---|
| E3 | All fingers + E/B key (either pinky) | -5 to -15 | Strong air support; keep the voicing up — do not drop the jaw |
| F3 | Std | -5 to -10 | Push air, don't bite |
| F#3 | Std | 0 to -5 | Generally stable |
| G3 | Std | 0 | Good |
| Ab3 | Std | 0 | Stable |
| A3 | Std | 0 | Good reference pitch |
| Bb3 | Std | 0 to +5 | May be slightly sharp |
| B3 | T + 1-2-3 + RH 2 | 0 | Stable |
| C4 | T + 1-2-3 | 0 | Stable chalumeau anchor |
| C#4 | T + 1-2-3 + C#/G# key | 0 to +5 | Transitional — voicing shift begins |
| D4 | T + 1-2 | 0 to +5 | Generally stable |
| Eb4 | T + 1 + RH 1 (1+1) Alt: Side Eb key | 0 to +5 | Forked fingering — may be slightly stuffy |
| E4 | T + 1 | 0 to +5 | Bridge to throat tones |
| F4 | T (thumb alone) | 0 to +5 | Approaching throat tone region |
| F#4 | LH 1 only (thumb off) Alt: Side keys | +5 to +10 | Beginning of sharp tendency — voice lower |
| G4 | Open Alt: Add RH fingers (resonance — slightly flatter, darker) | +15 to +25 | THE sharpest note - voice LOW, relax embouchure |
| G#4 | Throat G#/Ab key Alt: G# + RH fingers down (resonance — slightly lower) | +10 to +20 | Voice low, relax |
| A4 | Throat A key Alt: A + RH fingers down (resonance — slightly lower) | +10 to +15 | Open throat, voice low |
| Bb4 | A + register Alt: Side Bb (good for fast passages) | +5 to +15 | Voice low, relaxed embouchure |
| B4 | All fingers + low E/B key + register | 0 to +5 | First note over break |
| C5 | All fingers + F/C key + register | 0 | Generally stable |
| C#5 | Std | 0 | Good |
| D5 | Std | 0 | Stable |
| Eb5 | Std | 0 to +5 | Good |
| E5 | Std | 0 | Sweet spot of clarinet |
| F5 | Std | 0 | Stable |
| F#5 | Std | 0 to +5 | Generally good |
| G5 | Std | 0 | Stable |
| G#5 | Std | 0 to +5 | Generally stable — approaching upper clarion |
| A5 | Std | 0 to +5 | Good |
| Bb5 | "1+1" (register + thumb + LH 1 + RH 1) — agile for passing notes but slightly flat and stuffy Alt: Side-key Bb — better in tune and fuller for sustained notes | 0 to +5 | May be slightly sharp |
| B5 | Std | 0 to +5 | Approaching altissimo |
| C6 | Std | +5 to +10 | Top of clarion - tends sharp |
| C#6 | T + R + LH 2-3 + RH 1-2 | +5 to +15 | Voicing critical |
| D6 | T + R + LH 2-3 + RH 1 + Ab/Eb key | +5 to +15 | Keep throat open |
| Eb6 | T + R + LH 2-3 + RH 1 + RH sliver (B/F#) key + Ab/Eb key Alt: Forked: T + R + LH 2-3 + RH 2 + Ab/Eb key (no sliver) — tends flat | +10 to +20 | Very sharp - relax |
| E6 | T + R + LH 2-3 + Ab/Eb key | +10 to +20 | Significant adjustment needed |
| F6 | T + R + LH 2-3 + C#/G# key + Ab/Eb key | +10 to +25 | Extreme adjustment |
Equipment & Setup
Reeds
- Reed hardness 2½–3: Standard for most players — softer reeds play flatter overall
- Harder reeds (3½–4): Better projection but tends sharper in clarion register
- Softer reeds: Easier throat tones but more flat tendency in chalumeau register
- Reed quality matters: warped or old reeds cause unpredictable pitch center
- Cut style (French/Filed vs American): Filed reeds respond more freely and tend to play slightly flatter
Mouthpiece
- Smaller tip opening: less flexibility, more controlled pitch, tends slightly sharper
- Larger tip opening: more flexibility, requires a softer reed, tone center wider
- Shorter facing length: brighter tone, slightly sharper tendency
- Longer facing length: darker tone, slightly flatter tendency
- Hard rubber vs crystal: crystal tends slightly brighter and sharper
Barrel
- Barrel length: each mm of extra length = approximately 3-4¢ flatter overall
- Standard barrel is 65–66mm — pulling out 1–2mm addresses sharp tendency
- Hard-rubber and synthetic barrels cannot crack from temperature shock the way grenadilla can — the safer choice for cold outdoor playing (a cold barrel still plays flat, whatever it is made of)
- Longer barrel: flatter overall pitch, helps sharp throat tone region slightly
- Shorter barrel: sharper — only use if instrument plays consistently flat
Practice Tips
- Throat tones (G4–Bb4) sit 10–25¢ sharp — drop the jaw, open the oral cavity, and add the resonance fingerings (right-hand keys) to flatten without losing tone
- Voicing (tongue position) is the primary real-time pitch control — "EE" raises pitch ~15¢, "AW" or "OH" lowers by similar amount
- Cross the break (Bb4 to B4) without changing voicing or embouchure — the audible "flip" in pitch is voicing change, not the fingering itself
- Pulling the barrel flattens throat tones more than altissimo — adjust voicing first; only pull the barrel if the chalumeau is also sharp
- Long tones on F#4 and G4 with drone — these sit at the worst point of throat-tone sharpness and are the most exposed register
- Altissimo (above C6) sharpens with bite — keep the corners firm but do not pinch; an "OO" voicing keeps the upper register from running 20¢ sharp
- Reed strength matters: too soft = flat altissimo, too hard = sharp altissimo and resistant chalumeau — adjust by quarter-strengths
- Tune in two places: set the barrel against an upper-joint note that is not a throat tone, such as clarion G5 or E4 (open G4 runs sharp by itself, so zeroing it leaves the rest flat), and the middle tenon against clarion C5 (long tube) — if clarion B4–C5 run sharp while the throat tones sit well, pull 0.5–1mm at the middle joint instead of the barrel, since barrel pull disproportionately flattens the short-tube throat notes
Practice Routines
Verified routines drawn from this instrument's cited method literature. In the Virtuosic app, each one loads straight into the practice-routine runner — drone and metronome auto-configure per step.
Chalumeau Base (Tone Before Speed)
beginnerStein’s art starts in the low register: firm-but-relaxed embouchure, fast air, long tones that don’t sag. The clarinet’s cylindrical bore means the low register is your tuning anchor — learn its feel first.
- Reed check + embouchure set, no honks — 1 min
- Low E–G (written) long tones vs drone, 8 counts — 5 min · drone D3
- Slurred 3rds in chalumeau, keep the jaw still — 4 min
- F major (written), one octave, slow — 3 min · 60 BPM
- Rest — 1 min
Source: Stein, K. (1958). The Art of Clarinet Playing.
Throat Tones & the Break
intermediateThe throat tones (G4–Bb4 written) run sharp and thin; resonance fingerings fix both. Pino’s approach: add right-hand fingers on throat notes, keep them down crossing the break, and let the drone verify every crossing.
- Warm-up: chalumeau long tones — 3 min · drone F3
- Throat G/A/Bb with + without resonance fingerings vs drone — 5 min
- Break crossings A4↔B4, C5↔B4, quarter = 60, seamless — 5 min · 60 BPM
- Two-octave scale through the break, slurred — 4 min · 66 BPM
- Rest — 1 min
Source: Pino, D. (1980). The Clarinet and Clarinet Playing.
Clarion Voicing & Altissimo Approach
advancedMazzeo’s excellence work lives in voicing: high tongue position ("EE"), unwavering air, and knowing that the clarion runs 12ths (not octaves) above chalumeau. Overblown-12th matching against the drone exposes any bore-voicing mismatch.
- Warm-up + twelfths: low F→clarion C, match the drone both ways — 5 min · drone Eb3
- Clarion scale passages, quarter = 72, no bunched fingers — 5 min · 72 BPM
- Altissimo approach notes (C#6–E6 written): half-hole + voicing — 5 min
- Soft-dynamic clarion long tones — pitch rises as you decrescendo; voice it down — 4 min
- Rest — 1 min
Source: Mazzeo, R. (1981). The Clarinet: Excellence and Artistry.
Common Brands & Models
Brands cataloged in Virtuosic for clarinet (used by the app to filter shared tendency data by manufacturer).
Ensemble Intonation
Just vs. equal-tempered intervals
How far each pure (just) interval sits from its equal-tempered size.
- Major Third (-14¢ vs. ET): Just major 3rd (5/4) — the most commonly under-adjusted note in ensembles
- Major Sixth (-16¢ vs. ET): Just major 6th (5/3)
- Minor Third (+16¢ vs. ET): Just minor 3rd (6/5) — significantly sharper than ET
- Perfect Fifth (+2¢ vs. ET): Just perfect 5th (3/2) — what bowed strings tune their open fifths to; pianos and frets keep the ET fifth, ~2¢ narrower
Role in the ensemble
- Wind ensemble: oboe gives the tuning A; clarinets and saxes tune to it
- Concert band: tune to a Bb concert (oboe or principal clarinet); brass tunes separately
- In SATB-style wind voicings, the bass instrument (bassoon / contra / baritone sax) holds root
- Major 3rds in woodwind chords are the easiest to over-sharpen — flatten by ~14¢ deliberately
- Whole tones (M2) in close voicings should sit ~+4¢ above ET for a pure 9/8 ratio
Pitch center by genre
- Concert band: A=440
- Orchestra: A=440 (US) / A=442–443 (Europe, Japan many orchestras)
- Jazz/commercial: A=440; tempo and feel often more critical than absolute pitch
- Period/baroque: A=415 (low chamber pitch) or A=430 (Mozart-era classical)
Special cases
- Clarinet overblows at the 12th (3:1 ratio), NOT the octave — but the register vent is a compromise, so twelfths are not automatically in tune (often wide at the bottom); check E3–B4 and F3–C5 against a drone
- In a clarinet section, seconds and thirds match the pitch center of the principal; nobody plays sharp to project — project with tone and air
- Bass clarinet voicing the chord root: the long tube exaggerates pitch problems; tune at the neck (bass clarinets have no barrel), not with embouchure
- Clarinet choir: tune by sections (high, alto, bass) rather than as one mass; the 12th-relationship makes blending tricky
Reed & Mouthpiece
General
- Harder reed = brighter, more resistant, plays slightly sharper at given embouchure pressure
- Softer reed = darker, more responsive, plays slightly flatter; risk of pitch sagging on long notes
- Reed clipped too short or left too thick: harder-blowing, pitch drifts sharp; tone center becomes thin
- Reed over-thinned (too soft for the facing): pitch drifts flat, worst in the clarion; response becomes buzzy
- Embouchure pressure (jaw lift / bite): increases pitch; chronic biting causes 10–20¢ sharpness on every note
- Embouchure cushion (flesh-on-reed area): more cushion = warmer, slightly flatter; less = brighter, sharper
- Voicing (oral cavity shape, tongue position): "ee" position raises pitch / brightens; "ah" lowers / darkens
Instrument-specific
- Vandoren V12 vs traditional Blue Box: V12 cut plays slightly flatter with darker tone — common Bb clarinet pro choice
- Mouthpiece tip opening: more open (Vandoren M30, B45) = darker, requires softer reed; tighter (5RV) = brighter, harder reed
- Mouthpiece facing length: longer = darker, slower response; shorter = brighter, faster response
- Ligature material: metal = brighter; leather/fabric = darker, slightly flatter response
- Reed strength range: students use 2.5–3, intermediate 3–3.5, pros 3.5–4+ depending on mouthpiece
- Reed cycling: rotate 4+ reeds; never play the same reed two days running on important gigs
Cross-Fingerings & Alternates
- Throat tones (G4, G#4, A4, Bb4): historically the hardest range on Boehm clarinet; A4 with vent key + RH fingers played simultaneously fills out tone
- Throat Bb4: A key + register (with RH resonance fingers) is better in tune; the side-trill-key Bb is faster but ~+5¢ sharp
- Resonance fingerings: adding RH fingers to throat tones darkens timbre AND lowers pitch slightly — useful for solo passages
- High register cross-fingerings (above C6): vary by maker (Buffet R13 vs Yamaha YCL-CSVR); consult your specific model fingering chart
References
Tendencies and adjustments are drawn from established acoustic-research and pedagogy literature for this instrument family. Specific cent values vary by individual instrument, player, and conditions.
- Backus, J. (1969). The Acoustical Foundations of Music.
- Benade, A. H. (1976). Fundamentals of Musical Acoustics.
- Pino, D. (1980). The Clarinet and Clarinet Playing.
- Stein, K. (1958). The Art of Clarinet Playing.
- Mazzeo, R. (1981). The Clarinet: Excellence and Artistry.
- Pino, D. (1980). The Clarinet and Clarinet Playing. Dover.
- Brymer, J. (1976). Clarinet (Yehudi Menuhin Music Guides). Schirmer.
- Stein, K. (1958). The Art of Clarinet Playing. Summy-Birchard.
- Backus, J. (1961). "Vibrations of the reed and the air column in the clarinet." J. Acoust. Soc. Am. 33.
See your own intonation profile
Virtuosic Premium overlays your per-note pitch deltas on these instrument averages, so you can see exactly where you differ from the typical clarinet player — and how warmup shifts each note.