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.
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
- Soft dynamics tend flat; loud dynamics tend sharp
- Register key notes need careful voicing attention
🌡️ Temperature & Warm-up
Wooden clarinets are extremely sensitive to temperature and humidity. Plastic/composite clarinets are more stable. Allow 5-10 minutes to acclimate. Never leave in extreme temperatures.
Register Guide
Chalumeau
Chalumeau register (E3–C4): 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 voicing ("EE" to "AW" as you ascend) keeps pitch in line. This is where your sound and intonation should feel most natural.
Altissimo
Altissimo register (C#6+): All notes tend sharp. Voicing is everything — tongue should be very high and forward. Different fingerings work on different clarinets — find what works on yours.
Note-by-Note Tendencies
| Note | Fingering / Position | Tendency | Adjustment |
|---|---|---|---|
| E3 | All fingers + pinkies | -5 to -15 | Strong air support, open throat |
| 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 | Open | 0 | Open tone |
| C4 | Register + A | 0 | Just below throat tones |
| C#4 | Register + G# | 0 to +5 | Transitional — voicing shift begins |
| D4 | Register + F#-G | 0 to +5 | Cross-fingering, some instability |
| Eb4 | Register + F-G | 0 to +5 | Forked fingering — may be slightly stuffy |
| E4 | Register + E | 0 to +5 | Bridge to throat tones |
| F4 | Register + D | 0 to +5 | Approaching throat tone region |
| F#4 | Register + C# | +5 to +10 | Beginning of sharp tendency — voice lower |
| G4 | Open Alt: 4+5 RH (slightly flatter) · Half-hole G (slightly flat, darker) | +15 to +25 | THE sharpest note - voice LOW, relax embouchure |
| G#4 | A key only Alt: A+4 (slightly lower) · LH throat Ab key (if equipped) | +10 to +20 | Voice low, relax |
| A4 | A + register Alt: 1-2-3 register (chalumeau-like voicing) | +10 to +15 | Open throat, voice low |
| Bb4 | Register only Alt: Bis key (standard above break) · 1 + register (some horns) | +5 to +15 | Voice low, relaxed embouchure |
| B4 | Thumb + register | 0 to +5 | First note over break |
| C5 | Thumb + A + 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 | Std | 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 | Altissimo | +5 to +15 | Voicing critical |
| D6 | Altissimo | +5 to +15 | Keep throat open |
| Eb6 | Altissimo | +10 to +20 | Very sharp - relax |
| E6 | Altissimo | +10 to +20 | Significant adjustment needed |
| F6 | Altissimo | +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 harder 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
- Wooden barrels respond differently to temperature than Grenadilla — expand less
- 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
Common Brands & Models
Brands cataloged in Virtuosic for clarinet (used by the app to filter shared tendency data by manufacturer).
📚 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.
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.