Recording of Lucien Goethals' Cellotape. The electroacoustic part of this work was produced in three versions: one-track, two-track, and four-track tapes. It is meant to be played with two performers, a cellist and pianist who become responsible for the synchronicity of the piece. The piece premiered in Brussels with cellist, Herman Sabbe and pianist, Pierre Bartholomé.

Recording of Lucien Goethals' Studie 5. This is a work for tape with mixed electronic and concrete sounds. These different materials play off of each other in what the composer describes as a "question and answer" type of dialogue, while being modulated and transformed in various ways.

1. Lemon Drops: commissioned by Magnavox Corp.; Darmstadt, W. Germany, 3.22.67; Pub. Lingua Press 2. For Harry: (dedicated to Harry Partch); Electronic Music Concert, U. Illinois, 3.10.64 3. Fat Millie's Lament: (dedicated to MF); Electronic Music Concert, University of Illinois, 3.10.64 Pub. Lingua Press 4. The Wasting of Lucrecetzia; Electronic Music Concert, University of Illinois, 1.2.65; Pub. Lingua Press 5. Dante's Joynte; incorporated into Lingua I: Poems & Other Theaters (cf. below for separate listing); Pub. Lingua Press

Recording of Francisco Kropfl's Dialogos 1. This work uses complexes of short of electronic sounds with long reverberations of the round 10 seconds each, thanks to the natural reverberation chamber build at the studio at that time. The name of the piece relates to the "dialog" between the long transparent sounds obtained through the aforementioned procedure and the original electronic pulses.

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.