Credits

Herbie Hancock: Piano
Ben Sidran: Liner Notes
Billy Higgins: Snare Drums
Jackie McLean: Alto Saxophone
Kenny Dorham: Trumpet
Paul Chambers: Bass
Pete La Roca: Drums
Sonny Clark: Piano
Tony Williams: Drums, Snare Drums
Walter Davis, Jr.: Piano
Ron McMaster: Mastering, Transfers
Rudy Van Gelder: Engineer
Michael Cuscuna: Liner Notes, Reissue Producer
Patrick Roques: Artwork
Alfred Lion: Producer
Francis Wolff: Photography
Butch Warren: Bass