art direction Frank Gauna
bass Buster Williams
bass clarinet Jerome Richardson
tracks 3, 5 bass clarinet Romeo Penque
tracks 3, 5 bass trombone Jack Jeffers
bass trombone Tony Studd
drums Albert Heath
flugelhorn Johnny Coles
flute Hubert Laws
tracks 3, 5 flute Jerome Richardson
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
tracks 3, 7 written-by Buster Williams
tracks 1, 2, 4 to 6 written-by Herbie Hancock
Phonographic Copyright (p) Capitol Records, Inc.
Copyright (c) Capitol Records, Inc.
Manufactured By Capitol Records, Inc.
Recorded At Van Gelder Studio, Englewood Cliffs, New Jersey
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.

℗&© 2000 Capitol Records, Inc.
Made in USA [disc]
Printed in USA [tray insert]
Barcode: 7 243 5 25649 2 7
Matrix / Runout: 724352564927 MASTERED BY EMI MFG. (Variants 1 & 2)
Mastering SID Code: IFPI L044 (Variants 1 & 2)
Mould SID Code: ifpi 1635 (Variant 1)
Mould SID Code: ifpi 1665 (Variant 2)