39.4 - 39.4 (Rock Sound) (1972). Mexico. Psychedelic/Jazz/Progressive Rock.

Playlist: 1 Fe (Faith) 4:11 2 Detrás De La Máscara (Behind The Mask) 3:20 3 Perdedores Ganadores (Losers, Winners) 3:13 4 Más Alto (Higher) 3:18 5 Locura (Madness) 2:54 6 Yo Puedo Vivir Sin Ti (I Can Live Without You) 3:03 7 Mujer De Todos Los Días (Everyday Woman) 2:58 8 Ciudad Express (Express City) 2:50 9 Dejarte Libre (Set You Free) 4:09 10 Ciudadano Electrónico (Electronic Citizen) 2:54 Bass – Jorge A. Salles Drums – Jose Luis Zuniga Lazcarro Lead Guitar – Guillermo Brizio Dominguez Organ – Ariel Castellanos Villanueva Saxophone – Jaime Arturo Hernandez C. Trumpet, Flute – Octavio Garcia Hernandez Trumpet, Trombone – Carlos Hijar Medina Vocals – Enrique Sanchez Ruiz