For ALL instrumentalists and vocalists. Recordings contain 30 extended tracks of recorded background. Great primer for learning basic skills in Major and Minor keys. Advanced players will want to work on double-timing, playing outside and side-slipping in all keys at comfortable tempos. This set will help you gain confidence. Its designed to help any musician no matter what their level of ability. One of the most-used play-a-longs in the series. Special tracks have Jamey Aebersold playing various exercises and soloing on his saxophone with actual cuts from Volume24 so you can hear and see how to use this practice set. All of the e xercises and sax solos on the demo tracks have been transcribed and written out in the book! Use this set for warming up any ensemble. Pick a different key each day/week/practice.Jamey Aebersold, piano; John Goldsby, bass; and Charlie Craig, drums.