How to Determine the Type (Key) of a Clarinet

By the Length of it

As measured from Barrel (mouthpiece removed)

To the Bottom of the Bell

Regular Boehm

 

Eb Soprano =

C Soprano = 20

Bb Soprano = 23

A Soprano = 25

Selmer Depose Key of A = 23

Eb Alto =

Bb Bass =

Eb Contra-Alto =

Bb Contra-Bass =

 

Full Boehm

 

Albert

 

Bb Soprano = 23