tracks a1 to a4, b3, b4 arranged by, conductor Claus Ogerman
tracks b1, b2 arranged by, conductor Donald Byrd
tracks a5 arranged by, conductor Herbie Hancock
tracks a1 to a4, b3, b4 bass Bob Cranshaw
tracks a5 to b2 bass Ron Carter
design [cover] Michael Malatak
drums Grady Tate
tracks a1 to a4, b3, b4 engineer Phil Ramone
tracks a5 to b2 engineer Rudy Van Gelder
engineer [director of engineering for mgm] Val Valentin
engineer [remix] Rudy Van Gelder
guitar Kenny Burrell
leader, trumpet Donald Byrd
liner notes Jack Maher
tracks a5 to b2 percussion Candido
piano Herbie Hancock
producer Creed Taylor
tracks a1 to a4, b3, b4 tenor saxophone Jimmy Heath
tracks a5 to b2 tenor saxophone Stanley Turrentine
tracks a1 to a5, b2 to b4 vocals The Donald Byrd Singers
Published By Hancock Music
Published By Conrad Publ. Co.
Published By Helios Music (2)
Published By Leeds Music
Published By Elgy Music
Published By Glamorous Music, Inc.
Published By Arc Music (2)
Recorded At A&R Studios
Recorded At Van Gelder Studio, Englewood Cliffs, New Jersey
Pressed By MGM Record Manufacturing Division
The Donald Byrd Singers are two groups: three females (A1 to A4, B3, B4) and two male and two female voices (A5, B2)

A1 to A4, B3, B4 Recorded at A. & R. Studios, New York City November 3, 4 & 6, 1964.
A5 to B2 Recorded at Van Gelder Studios, Englewood Cliffs, N.J. December 16, 1964.

Printed inner company sleeve.
Matrix / Runout: 65-VGS-506 (Side A Label)
Matrix / Runout: 65-VGS-507 (Side B Label)
Matrix / Runout: V6-8609 65VGS-506 [MGM block-shaped S] (Side A)
Matrix / Runout: V6-8609 65VGS-507 [MGM block-shaped S] (Side B)
Matrix / Runout: VAN GELDER (Stamped)
Rights Society: BMI
Rights Society: ASCAP