tracks a2, b1 acoustic guitar Roque Narvaja tracks a1 to a5, b1, b4 backing vocals Carlos Narea tracks a1 to a5, b1, b4 backing vocals Mario Argandoña tracks a1, a2, a5, b1, b2 backing vocals Serge Maillard tracks a1 to a5, b1, b4 backing vocals Tato Gómez bass guitar Tato Gómez drums Willy Ketzer tracks b3 electric guitar Emilio Alvarez tracks a4, b2 electric guitar Javier Vargas tracks a2, a3, b4 electric guitar John Parsons tracks b1 electric guitar Juan Cerro tracks a1, b2 electric guitar Salvador Domínguez engineer [köln] Günther Kasper engineer [madrid] Pepe Loeches tracks b2 keyboards [clavinet] Chico De Los Reyes tracks a1, a2, a4, b1, b3, b4 keyboards [oberheim] Rainer Brüninghaus mixed by Conny Plank percussion Clarito "Cooper" Nasch photography by [contraportada] Alejandro Cabrera tracks a5, b2 piano Chico De Los Reyes tracks a4, a5, b1, b3 piano Rafael Guillermo producer Carlos Narea producer Miguel Ríos producer Tato Gómez Record Company Polydor, S.A. Distributed By Polydor, S.A. Phonographic Copyright (p) Polydor International GmbH Manufactured By COFASA Printed By Gráficas Foco, S.A. Published By Chappell Ibérica Recorded At Estudios Eurosonic Recorded At Sound Studio N Mixed At Conny's Studio Recorded in February-March 1980 at Eurosonic Studios (Madrid) and Sound Studio N (Köln). Mixed by Conny Plank at Conny's Studio. Original recording by Polydor S.A. (Spain) Editado por Polydor S.A.
Matrix / Runout: 850 2385169 A 1 (A side runout - machine stamped) Matrix / Runout: 850 2385169 B 1 (B side runout - machine stamped) Rights Society: SGAE Depósito Legal: M-12882-1980 Other: Perm. 6421 (Impuesto de Lujo a Metalico) Price Code: 150 (Circled)