Keep written and concert names on the same screen
The tuner labels the note a B-flat clarinetist reads and also shows the sounding concert note. That pairing avoids the common situation where the instrument is centered but appears to be a whole step away in a concert-pitch tuner.
Test both sides of the register break
Check a comfortable chalumeau note and a clarion note with the instrument warmed. A single barrel adjustment affects the whole air column, while individual notes can still respond differently to voicing, fingers, and temperature.
Use a steady air column before judging cents
Begin the note cleanly, keep the throat relaxed, and read after the pitch settles. If the result bends during one breath, repeat before changing the barrel; the changing line may reflect voicing rather than instrument length.
Questions
These answers focus on clarinet transposition, warming, and register changes.
Why are two note names shown?
One is the written B-flat clarinet note and the other is the concert sound captured by the microphone.
When should I adjust the barrel?
Compare repeated sustained notes after the instrument has warmed rather than reacting to one attack.
Can it analyze a chord?
No. Play one clarinet note at a time so the monophonic detector has one fundamental.
Sources used for transposition
The B-flat written-to-concert relationship follows standard clarinet notation documented by instrument makers; the practice guidance is tied to the page’s live sustained-note behavior.
Live microphone or selected-file audio is processed locally in this browser and is not uploaded.