The composition ... by Luis Naón at the Espacio de Experimentación Sonora makes use of three interwoven elements that mutually interpret each other: the voice of Juan Gelman, reading his poems; the cellist Eric Picard, performing Gelmanianas; and commentaries and parentheses, which are sometimes pure sounds, fabricated either with external, hardly recognizable materials or through treatments and declensions of the voice and instrument"--Page [4] of cover.