Chick Corea – acoustic piano, Fender Rhodes electric piano, Yamaha electric organ, synthesizers (ARP Odyssey, Minimoog, Polymoog, Moog Model 15 modular synthesizer), percussion, vocals, production, arrangement, composer
Stanley Clarke – double bass, bass guitar
Steve Gadd – drums
Narada Michael Walden – drums, handclaps
Don Alias – percussion
Jean-Luc Ponty – violin
Gayle Moran – vocals

String quartet:
Connie Kupka – violin
Barry Socher – violin
Carole Mukogawa – viola
David Speltz – cello
Brass section:
Stuart Blumberg – trumpet
John Rosenburg – trumpet
John Thomas – trumpet
Ron Moss – trombone