sentences:  He also prepared the recording of the collective composition "Ensemble", organized by Stockhausen for the Darmstadt Courses in 1967.In 1971 he became a founding member of the Oeldorf Group of composers and performers, as well as beginning work at the Centre Européen pour la Recherche Musicale in Metz, at IRCAM in Paris, and at the ZKM, Zentrum für Kunst und Medientechnologie in Karlsruhe .He has taught in Metz, Stuttgart, Basel, Quito, and Győr, amongst other places.