C6 Bass Clarinet Fingering
How to play C6 on the bass clarinet: Register key · thumb.
Filled keys and holes in the diagram are the ones you press or cover. The thumb hole is on the back of the instrument, so it is drawn to the left; the clusters at the bottom are the pinky keys, and the wide key marked "Low E♭" is the bass clarinet's extension key, below the right-hand pinky keys.
Hear C6 and try the fingering
Pick an instrument and a note and the diagram updates instantly — filled keys are the ones you press. The same finder sits on every note page, pre-set to that note.
The C6 fingering, step by step
- Press the register key with your left thumb.
- Keep the thumb hole covered with your left thumb.
In short: register key · thumb.
About C6 on the bass clarinet
The clarion is the bass clarinet’s singing register. Almost every clarion fingering is a low-register fingering plus the register key — which is why the low register, extension key and all, is worth learning properly first.
C6 is the highest note in this chart — the top of the clarion register, played with just the register key and the thumb. Above here the bass clarinet’s altissimo fingerings stop following the soprano’s and vary by model, so the standard bass references chart them separately; this chart stops at C6 rather than guess.
C6 is note 34 of the 34 in the full bass clarinet fingering chart, sitting between B5 below it.
Doubling from soprano clarinet? This is the same fingering as C6 on the clarinet — the Boehm fingerings are shared across the clarinet family, which is why the bass is the standard first double. Like every fingering on this site, it was checked against the Woodwind Fingering Guide's bass clarinet charts and Yamaha's official chart before publishing.
Practising C6
If this note squeaks or drops to its low partner, check your left thumb: it must keep the thumb hole covered while its tip presses the register key. Half-covering the hole is the usual culprit, on bass exactly as on soprano.
Questions about C6
What is the fingering for C6 on bass clarinet?
Register key · thumb. C6 is a clarion register note on the bass clarinet. The full step-by-step is on this page, and you can hear the note with the Fingering Finder.
What does C6 sound like on a bass clarinet?
The bass clarinet is a transposing instrument in B♭ that sounds a major ninth below its written notes, so written C6 sounds as concert B♭4. When your band director asks for a concert B♭4, this is the note you finger.
Is there an alternate fingering for C6?
For C6, the fingering above is the one to learn. It is the basic fingering both reference charts give for this note, and the one teachers expect to see.
Think this fingering is wrong? Report it — every report is checked against the source charts.