Clark W Fobes Debut Bass Clarinet Mouthpiece Debut Bass Clarinet Mouthpiece The Debut series mouthpieces are among the best student mouthpieces on the market The bass clarinet, being Clark Fobes' personal instrument of choice, make this mouthpiece an excellent choice, not just for students, but for any player The Debut series mouthpieces are among the best student mouthpieces on the market The bass clarinet, being Clark Fobes' personal instrument of choice, make this mouthpiece an excellent choice, not just for students, but for any player