The Hal Leonard Jazz Combo Paks are a versatile and inexpensive way to put four fantastic charts in front of your high school or college combo. The flexible instrumentation provides many options for covering the parts; the arrangements are absolutely top notch; and you will never find a better value.Instrumentation:Line 1 (lead or harmony): Alto Sax Trumpet Soprano Sax Clarinet Flute VibesLine 2 (lead or harmony): Alto Sax Bari Sax Trumpet Soprano Sax Clarinet TromboneLine 3: Bari Sax Tenor Sax Trumpet TrombonePak #1 includes: On Green Dolphin Street; Killer Joe; My FunnyValentine; Bernie's Tune. (Note: This pak does not include a CD.)