'1967-2006' - Edgar Valcárcel (Puno, 1932-Lima, 2010) was one of the most important composers in Peru. He belonged to a crucial generation, the Generation of the 1950s, which also included César Bolaños, Leopoldo La Rosa, Celso Garrido-Lecca, Enrique Pinilla and Francisco Pulgar Vidal. These musicians were responsible for introducing locally the new languages of the international musical avant-garde, in a meeting with the legacies of Peruvian native music, where the folkloric material was used under very free and abstract conceptions. Although Valcárcel distinguished himself as a prolific and remarkable composer of orchestral and chamber music, as well as a notable pianist, his interest in electronic composition was registered in four pieces that are a good example of his musical obsessions. SIDE 1: 1. Invención [Invention] (1967) for magnetic tape 2. Zampoña Sónica [Sonic Zampoña] (1968-2006) (for processed native instruments and magnetic tape) SIDE 2: 1. Flor De Sancayo II: Retablo [Flower Of Sancayo II: Altarpiece] (1976) (for piano and magnetic tape) 2. Canto Coral A Túpac Amaru II [Choral Song For Túpac Amaru II] (1968) (for choir, percussion, lights and magnetic tape)