| Code | Title | Time | Year | City, Country | Price | Instrument |
| 15.01 | Aleatórios I, II, III obs: audio-visual pieces |
1966/67 | - | tape | ||
| 15.02 | Bodas Sem Fígaro obs: commissioned by the city of Mannheim, Germany, for the commemorations of the Mozart Year. For the work computer programming was used based on the parameters of the Ouverture of "La Nozze de Figaro" by Mozart; translation: Divertimento Musicale |
7’00 | 1976 | on request | flute (picolo), clarinet in Bflat, piano, violin, viola, violoncello, double bass, synthesizer | |
| 15.03 (1-5) | Ciclo Brecht 1 Von den verführten Mädchen 2 Sonnet der Emigration 3 Liturgie von Hauch (trad. Liturgia do sopro) 4 Liebes Lied obs: without tape 9.20; 5 Lied von der Wolke der Nacht, Das obs: without tape 9.21 |
29’30 | 1947/75 | - | (1) 1 voice, 2 recorded voices, tape, synthesizer; (2) voice, tape; (3) voice (manipulated, sung, spoken & transformed by synthesizer) and 2 tapes (4 chanels); (4) voice, piano, synthesizer; (5) female voice, tape | |
| 15.04 | Diálogo de Amor Entre Um Gongo & Um Chocalho | 9’50 | 1976 | - | gongo, chocalho, tape, synthesizer | |
| 15.05 | Etude obs: realized in 3 versions |
3’00 | 1976 | - | tape | |
| 15.06 | Mutationen I dedicated to: Antoinette M. Vischer; obs: work commissioned by Antoinette Vischer |
3’00 | 12-1968 | Rio de Janeiro, Brazil | €10.00 | harpsichord, tape |
| 15.07 | Mutationen II ded. Gisčle Santoro |
8’00 | 10-08-1969 | Paris, France | €10.00 | violoncello, tape |
| 15.08 | Mutationen III dedicated to: Gisčle Santoro, Alex Blin; obs: work comissioned by the "Mannheimer Abendakademie" |
8’00 | 1970 | -, Germany | €10.00 | piano, tape |
| 15.09 | Mutationen IV | 8’00 | 1971/72 | - | viola, tape | |
| 15.10 | Mutationen V | 8’00 | 1972 | - | violin, tape | |
| 15.11 | Mutationen VI | 8’00 | 1972 | - | violin, tape | |
| 15.12 | Mutationen VII without tape 5.01 |
8’00 | 1973 | - | string quartet or any other combination of Mutationen II, IV | |
| 15.13 | Mutationen VIII other versions 5.02 & 6.04 |
8’00 | 1975 | €30.00 | string quartet, piano (combination of Mutationen ii,iv,v,vi and tape) | |
| 15.14 | Mutationen X without tape 2.09 |
6’00 | 1976 | €5.00 | oboe, tape | |
| 15.15 | Mutationen XI obs: versions: with tape 6.05 & 7.29. work formed by the group of Mutationen II, IV, V, VI & XI |
8’00 | 1976 | €10.00 | double bass, tape | |
| 15.16 | Mutationen XII | 8’00 | 1976 | €30.00 | string quintet or string orchestra, tape | |
| 15.17 | Nur eines wird verboten-bleiben: Lieben Ohne Liebe lyrics by Thiago de Mello; translation: only one thing is forbidden: to love without love |
3’00 | 1975 | - | recited voice, synthesizer | |
| 15.18 | Poemas, 3 | 8’00 | 1975 | - | recited voice with audio manipulation | |
| 15.19 | Struktur Von Zement Und Eisen translation: Structure of Cement and Steel |
8’00 | 1972/75 | - | tape |