tracks 2, 5, 6 alto saxophone Jackie McLean
tracks 1, 3, 4, 7 to 9 bass Doug Watkins
tracks 2, 5, 6 bass Reggie Workman
design [redesign by] Patrick Roques
drums Lex Humphries
liner notes [original liner notes] Nat Hentoff
photography by [cover photo by], design Reid Miles
piano Duke Pearson
producer Alfred Lion
recorded by Rudy Van Gelder
reissue producer Michael Cuscuna
tracks 1, 3, 4, 7 to 9 tenor saxophone Hank Mobley
trumpet Donald Byrd
Manufactured By Capitol Records, Inc.
Phonographic Copyright (p) Capitol Records, Inc.
Copyright (c) Capitol Records, Inc.
Recorded At Van Gelder Studio, Englewood Cliffs, New Jersey
Glass Mastered At EMI MFG.
Recorded at Van Gelder Studio, Englewood Cliffs, New Jersey on January 17 (tracks 3, 9), January 25 (tracks 1, 4, 7, 8) and July 10 (tracks 2, 5, 6), 1960.
Tracks 7 to 9 are previously unissued bonus tracks.

©℗ 1996 Capitol Records, Inc.
Barcode: 7 243-8-52435-2 3
Matrix / Runout: 724385243523 1-1-2 MASTERED BY EMI MFG. (Variant 1)
Matrix / Runout: 724385243523 1-1-3 MASTERED BY EMI MFG. (Variant 2)
Mastering SID Code: IFPI L043 (Variant 1, 2)