Set of original duets that coordinate directly to the classic Voxman 60 Selected Studies for Trombone published by Rubank, (our number 001622). Use this book in conjunction with the Voxman to perform duets with interesting harmonies and other surprises. (Voxman book sold separately, see 001622 to purchase.) The primary intent of this volume is for recreational duet playing. Additionally, it will also help with key security, sight reading, intonation, ensemble skills, style matching, confidence and independance.