This cd release includes the complete original albums: Tracks 1-12: "Mangle: Instrumental" (1975), AreÃto LD-3567. Tracks 13-20: "Grupo Algo Nuevo" (1981), AreÃto LD-3983. Juan Pablo Torres is the director & arranger on both albums, as well as the lead soloist on the second session featuring his band Algo Nuevo. The first session features the Egrem Orchestra with master pianist Pedro Coto. Includes a 20-page comprehensive booklet!