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; and the arrangements are absolutely top notch. Instrumentation: - Line 1 (lead or harmony): Alto Sax, Trumpet, Soprano Sax, Clarinet, Flute, Vibes - Line 2 (lead or harmony): Alto Sax, Bari Sax, Trumpet, Soprano Sax, Clarinet, Trombone - Line 3: Bari Sax, Tenor Sax, Trumpet, Trombone