This book includes 10 Duets and a 40 track Play-along CD. The Play-along CD also contains extra rhythm section tracks for extended blowing and for playing “live” with two trumpeters. Master Trumpeter Mark Olen plays both parts of the duets along with a fantastic rhythm section. Players have a choice of playing the lead part or the second part along with the recording. Also included is a style and analysis section, and a detailed practice guide for intermediate, advanced and pro-level players.