7'; UA: Miami University (1954), Luc Ferrari : piano
7'; UA: Miami University (1954), Luc Ferrari : piano
10'; UA Paris (1955), Luc Ferrari : piano
1953-1954; 8'; UA: Darmstadt (1956), Luc Ferrari : piano
6'; UA: Paris (1956), Luc Ferrari : piano
6'45''; 1954-1955; UA: Paris (1956), Luc Ferrari : piano
5'45''; UA: Darmstadt (1957), Luc Ferrari : piano
10’
45'; UA: Montpellier Festival International de Radio France, 27.7.1985, Paul Dubuisson - piano
9’, for piano and tape; UA: Köln 1992, Volker Banfield, piano; solo of piano on environment and interview of Mauricio Kagel
14'; 1982-1985; rev. 1995; UA: Marseilles 1997, Michel Maurer - piano
ca. 30′; For four soloists and sixteen instruments (soloists: 1 piano, 3 percussions), UA: Festival d’Avignon 1968 EIMCP, Conductor : Konstantin Simonovich
1989-1991; 20'; UA: 16.4.1994, Albi, Christine Lagniel & Michel Maurer – piano
20’; for two pianos and a third very powerful instrument being able to hold a very strong note
20′; for amplified harpsichord and stereo tape; UA: Paris, by Elisabeth Chojnacka, 1973