tracks a5 to a8, b6, b7 alto saxophone Hubert Fol
tracks b6, b7 alto saxophone Jean Aldegon
tracks b4, b5 alto saxophone Mickey Nicholas
tracks b4, b5 alto saxophone Pierre Gossez
tracks a5 to a8 arranged by Pierre Michelot
tracks a5 to a8, b4 to b7 baritone saxophone Armand Migiani
tracks b1 to b3 bass Jean Warland
tracks a1 to a8, b4 to b7 bass Pierre Michelot
cover [illustration] Doug Rosenthal
drums Kenny Clarke
liner notes Dan Morgenstern
photography by Jean-Pierre Leloir
tracks b1 to b3 piano Francy Boland
tracks a1 to a4 piano Martial Solal
tracks a5 to a8, b4 to b6 piano Maurice Vander
tracks b7 piano Raymond Fol
producer [associate] Dan Morgenstern
producer [for release] Hugh Fordin
tracks b1 to b3 tenor saxophone Don Byas
tracks b4 to b6 tenor saxophone Georges Grenu
tracks a1 to a8 tenor saxophone Lucky Thompson
tracks a5 to a8 tenor saxophone Pierre Gossez
tracks b7 tenor saxophone, clarinet Tony Scott
tracks b4, b5 trombone Benny Vasseur
tracks a5 to a8 trombone Billy Byers
tracks a5 to a8, b6, b7 trombone Nat Peck
tracks a5 to a8, b6 trumpet Ack Van Rooyen
tracks a5 to a8 trumpet Bernard Hulin
tracks b7 trumpet Jean Liesse
tracks b4, b5 trumpet Roger Guérin
tracks b1 to b3 vibraphone Fats Sadi
Tracks A1 to A4 recorded at Pathé Marconi, Boulogne Studios, September 26, 1957.
Tracks A5 to A8 recorded at Pathé Marconi, Boulogne Studios, September 23, 1957.
Tracks B1 to B3 recorded at EMI Electrola Studios, Cologne, February 25, 1960.
Tracks B4 to B7 recorded at Pathé Marconi, Boulogne Studios,November, 1957.

Original releases:
Tracks A1 to A4 > Relax (French Columbia ESDF 1167)
Tracks A5 to A8 > Plays Pierre Michelot (French Columbia ESDF 1176)
Tracks B1 to B3 > Don Wails With Kenny (German Columbia Jazz Star Series C 41226)
Tracks B4 to B7 > Kenny Clarke Plays Christian Chevallier (French Columbia ESDF 1222)