Arranged By [String, Brass And Woodwind Arrangements] – Herbie Hancock (tracks: A1 to B1)
Brass – Bobby Shew (tracks: A1 to B1), Garnett Brown (tracks: A1 to B1), Maurice Spears (tracks: A1 to B1), Robert O’Bryant, Sr. (tracks: A1 to B1)
Design – Tommy Steele (2)
Engineer [Assistant, The Automatt] – Cheryl Ward, Chris Minto
Engineer [Assistant, The Village Recorder] – Terry Becker
Engineer [Different Fur Trading Co.] – Steve Mantoani
Engineer [The Automatt] – David Rubinson, Fred Catero
Mastered By – Phil Brown
Photography By – Kaz Tsurata
Producer – David Rubinson & Friends, Inc., Herbie Hancock
Strings – Emily Van Valkenburgh (tracks: A1 to B1), Lawrence Granger (tracks: A1 to B1), Linda Wood (2) (tracks: A1 to B1), Nathan Rubin (tracks: A1 to B1), Roy Malan (tracks: A1 to B1), Terry Adams* (tracks: A1 to B1)
Vocals, Backing Vocals, Electric Piano [Fender Rhodes], Clavinet [Hohner-d6], Piano, Synthesizer [Oberheim Polyphonic, Oboe 1, Yamaha Cp-30, Arp 2600, Mini-moog, Arp String Ensemble, Yamaha Polyphonic, Arp Odyssey, Poly-moog, Micro-moog, E Mu Polyphonic] – Herbie Hancock
Woodwind – David Willard Riddles* (tracks: A1 to B1), Ernest J. Watts* (tracks: A1 to B1), Fred Jackson, Jr. (tracks: A1 to B1), Jack Nimitz (tracks: A1 to B1)