John Foster prop65 For years I wondered if

For years I wondered if a bass trombone mouthpiece could be made to address the unique demands of doubling between tenor and bass trombone

and a new #R backbore

Ambronze gives the horn a broad

and the gentleness of playing a ballad

Featuring a traditional alto horn rim shape that is more similar to a trumpet rim profile

John Foster prop65 For years I wondered ifWith an open backbore, coupled to a #23 throat, the Foster baroque trumpet mouthpiece offers both a full sound with the proper resistance and slotting to facilitate a great baroque trumpet feel. The traditional round cup with a tight turn to the throat provides exceptional slotting and accuracy. The round rim promotes comfort and offers familiarity for ease in playing. Shank size is 0. 388" for modern receivers. Email us for custom shank sizes for