My Very Best Christmas, Trombone & Bassoon Edition Book/CD Set, 17 Solos, Duets and play-along CD on Christmas favorites arranged and edited by Karen Khanagov. The seventeen Christmas songs in this volume are arranged in comfortable keys for players at all levels and for all occasions. It includes two parts for either solo or duet performance and piano accompaniment. The books for flute, trombone, trumpet and alto sax are compatible so that ensembles may mix and match parts as desired.