Recording of Sten Hanson's Don't hesitate, do it right now. This work consists of 4 separate pieces: 'Che', 'The Glorious Desertion', 'Don't hesitate, do it right now', and 'Revolution'. This collection of pieces were inspired by the ADC (American Deserters Committee), a group of American soldiers that found sanctuary in Sweden after deserting the American army during the Vietnam war. The spoken text in this piece is sampled from a speech given by Che Guevara, a public figure who took part in Castro's revolution.

Pepe Del Rio interviews Willis Conover for a Spanish-language program.

Recording of Coriún Aharonián's Que, spoken text performed by Armando Halty. All of the sound material, besides the spoken text, is electronically generated sounds. It was composed between July and October 1969 and was realized in the Laboratorio de Moesica Electronica of the Centro Latinoamericano de Altos Estudios Musicales of the Instituto Torcuato Di Tella in Buenos Aires.

Recording of César Bolaños' Intensidad y altura. This work is based on a poem by the same name by Cesar Vallejo and uses sound material from the read poem. Other acoustic materials were modified later with the usual procedures for Tape Music. This piece was the first electroacoustic piece composed at CLAEM.