Credits

Herbie Hancock: Piano
Kenny Burrell: Guitar
Donald Byrd: Trumpet
Duke Pearson: Piano, Arranger
Hank Mobley: Tenor Saxophone
Coleridge-Taylor Perkinson: Vocal Director, Voices
Rudy Van Gelder: Remastering, Recording
Michael Cuscuna: Reissue Producer
Nat Hentoff: Liner Notes
Reid Miles: Cover Photo, Design, Photography
Alfred Lion: Producer
Bob Blumenthal: Liner Notes
Francis Wolff: Liner Note Graphics
Butch Warren: Bass
Donald Best: Vibraphone, Backing Vocals
Lex Humphries: Drums, Synthesizer