Playing on the Changes Bass Clef Inst Bk/DVDPlaying on the Changes features 13 jazz etudes through the various chord qualities found in standards and jazz tunes in all 12 keys. Areas covered include major 7th chords, minor 7th chords, dominant 7th chords (Mixolydian, altered dominant, and half whole diminished), minor ii (flat 5) chords, tritone substitutions, and a variety of progressions using all of the above. Bob Mintzer has written out etude solos that traverse the changes in a way that