SCHNIBBLES for Two: 101 Easy Practice Duets for Band: TROMBONE for Trombone,Brass Duet,Concert Band,Flexible Instrumentation Duets written by Brad Carman. The format of this sheet music is Individual Part and it’s published by Brad Carman. SCHNIBBLES for Two: 101 Easy Practice Duets for Band: TROMBONE is part of the following sheet music categories: Etudes and Exercises.