Art Direction – Frank Guana
Bass – Buster Williams
Bass Clarinet – Jerome Richardson, Romeo Penque (tracks: 3, 5)
Bass Trombone – Jack Jeffers (tracks: 3, 5), Tony Studd
Drums – Albert "Tootie" Heath
Flugelhorn – Johnny Coles
Flute – Hubert Laws, Jerome Richardson (tracks: 3, 5)
Liner Notes [Original] – Herb Wong
Liner Notes [RVG Edition] – Bob Blumenthal
Photography By [Liner] – Francis Wolff
Piano, Electric Piano – Herbie Hancock
Producer – Duke Pearson
Recorded By, Remastered By [2000] – Rudy Van Gelder
Reissue Producer – Michael Cuscuna
Tenor Saxophone, Alto Flute – Joe Henderson
Trombone – Garnett Brown
Written-By – Buster Williams (tracks: 3, 7), Herbie Hancock (tracks: 1, 2, 4 to 6)
Recorded on April 18 (#2,4,6), April 21 (#1) and April 23 (#3,5,7), 1969 at the Van Gelder Studio, Englewood Cliffs, New Jersey.
All transfers from analog to digital were made at 24-bit resolution.
#6 & 7 bonus tracks, not part of the original album.
