He worked for the Radio Télévision Belge de la Communauté Française (RTBF) from 1961, as a producer from 1971.
Four operas were written in collaboration with Luc Bondy who adapted plays for him, Schnitzler's La Ronde, Shakespeare's The Winter's Tale, Strindberg's Miss Julie and Iwona, księżniczka Burgunda by Witold Gombrowicz, and who directed the world premieres of the operas.
His last opera based on Feydeau's vaudeville 'On purge bébé' had its world premiere at La Monnaie in Brussels in December 2022.
However, it was only after coming into contact with the "Liège Group" of Henri Pousseur, André Souris, and Célestin Deliège [fr]) in 1957 that he began to write music, as a self-taught composer.
[10] His works have been performed at the most important festivals of contemporary music, such as Darmstadt, Warsaw, Brussels, Royan, Metz, Avignon, Zagreb, Montréal and Paris.
[6] After that, clear structures, periodically recurring rhythms, consonances and melodic elements characterise his musical language.