For all musicians regardless of ability! If you use this set with Volume 1, you will have a solid foundation to meet any new challenge. This set covers major, minor (dorian, harmonic and melodic), dominant 7th, half-diminished, lydian and sus. 4. It also has a very slow blues in F and one in Bb. 31 different tracks with a lot of variety! CD tracks have been recently extended to allow more practice time without interuption.Rhythm Section: Jamey Aebersold (p); Steve Rodby & John Goldsby (b); Mike Hyman & John Clay (d)