The opinion of the Vandoren experts More open, the same qualities as the M13, easier to play in the upper register. Its facing gives it a particularly pure sound. > Explanation of the mouthpiece's structure and its opening Opening 1/100 mm 102- Facing length Medium Long Instrument Bb clarinet Series Traditional clarinet mouthpieces
More open, the same qualities as the M13, easier to play in the upper register. Its facing gives it a particularly pure sound.