Isang Yun
He was also part of a number of world premiers, among them "Sim Tjong" by Isang Yun (Munich 1972), "Love's Labour's Lost" by Nicolai Nabokov (Brussels 1973), "Elisabeth Tudor" by Wolfgang Fortner in Berlin 1972, and "Oedipus" by Wolfgang Rihm (Berlin 1987). He was able to work personally with many composers on their works, e.g. Frances Burt, Isang Yun, Marcel Mihalovici, Stephen Burton, Luigi Dallopicola, Nicolas Nabokov, Hans Werner Henze and Carl Orff.