This CD, compiled by Mark Gridley, includes 159 examples of instrument sounds and strategies for jazz combo improvisation and supplies students with demonstrations and narrative explaining twelve-bar blues, A-A-B-A, ride rhythms, walking bass, comping, trumpet vs. Fluegelhorn, clarinet vs. soprano sax vs. alto sax vs. tenor sax vs. baritone sax, Harmon mute, plunger mute, chords, chord changes, blue notes, trombone, vibraphone, and flute.