On any Saturday, anywhere from 25 to 40 trombonists show up for rehearsal. They divide themselves into six groups of music (leads, seconds, thirds, etc.), depending on the players' instrument and range, and the group's sound balance. The trombones are joined by a rhythm section consisting of bass, piano, and percussion. A singer is often present to help with vocal compositions.All of the players are volunteers united in their love for the trombone and for playing good music in the ensemble of the trombone choir. Sponsored by Local 7, AFM, BonesWest is a chapter of the International Trombone Association.
Bones West welcomes invitations to perform at community events as a public service. All members donate their services for these events, though the choir does usually receive an honorarium.