Credits

Herbie Hancock: Piano
Ron Carter: Bass
Billy Higgins: Drums
Chuck Israels: Bass
Dexter Gordon: Tenor Saxophone
Freddie Hubbard: Trumpet, Flugelhorn
Grachan Moncur III: Trombone
Hank Mobley: Tenor Saxophone
Thad Jones: Flugelhorn
Tony Williams: Drums
George Coleman: Tenor Saxophone
Peter Phillips: Bass Trombone
Mickey Roker: Drums
Rudy Van Gelder: Engineer
Alfred Lion: Producer
Butch Warren: Bass