2. The Prisoner
3. Firewater
4. He Who Lives in Fear
5. Promise of the Sun
Herbie Hancock — acoustic piano, electric piano
Johnny Coles — flugelhorn
Garnett Brown — trombone
Joe Henderson — tenor saxophone, alto flute
Buster Williams — bass
Tootie Heath — drums
Tony Studd — bass trombone (1, 2, 4)
Jack Jeffers — bass trombone (3, 5)
Hubert Laws — flute (1, 2, 4)
Jerome Richardson — bass clarinet (1, 2, 4), flute (3, 5)
Romeo Penque — bass clarinet (3, 5)
Produced by Duke Pearson