bass Miroslav Vitous
tracks 2-1 to 2-7 composed by Thelonious Monk
design Klaus Detjen
drums Roy Haynes
engineer Bernie Kirsh
engineer [ass. engineer] Duncan Aldrich
engineer [mixing] Martin Wieland
liner notes Chick Corea
mixed by Martin Wieland
tracks 1-3, 1-4 music by ["duet music"] Chick Corea
tracks 1-3, 1-4 music by ["duet music"] Miroslav Vitous
tracks 1-8 music by ["slippery when wet"] Chick Corea
tracks 1-1 to 1-3, 1-6, 1-7 music by ["trio music"] Chick Corea
tracks 1-1 to 1-3, 1-6, 1-7 music by ["trio music"] Miroslav Vitous
tracks 1-1 to 1-3, 1-6, 1-7 music by ["trio music"] Roy Haynes
photography by Michael Manoogian
piano Chick Corea
producer Manfred Eicher
Phonographic Copyright (p) ECM Records GmbH
Manufactured By Polygram, Hanover, West Germany
Made By Polygram, Hanover, West Germany
Made By PDO, Germany
Recorded At Mad Hatter Studios
Mixed At Tonstudio Bauer
Original German CD reissue without SID codes and with ECM typed in red letters on disc, previously released as a 2-LP-set, later as a single CD

Housed in a fatboy jewel case.

Recorded November 1981 at
Mad Hatter Studios, Los Angeles
Mixed at Tonstudio Bauer, Ludwigsburg

An ECM Production

℗ 1982 ECM Records GmbH
Barcode: 0 42282 77022 6
Matrix / Runout: 827 703-2 01 ✳ (Disc 1)
Matrix / Runout: 827 704-2 01 ✳ (Disc 2)
Matrix / Runout: MADE IN W. GERMANY BY PDO (Discs 1 & 2, inner ring, stamped)
Rights Society: GEMA
Label Code: LC 2516
SPARS Code: AAD
Other: ECM 1232 (Catalog number disc 1)
Other: 827 703-2 (Catalog number disc 1)
Other: ECM 1233 (Catalog number disc 2)
Other: 827 704-2 (Catalog number disc 2)