ヘルムート・ラッヘンマン
After his studies with Hans Joachim Koellreutter, Esther Scliar and R. Murray Schafer, he took classes with Helmut Lachenmann, Gordon Mumma and Dieter Schnebel at the "Cursos Latinoamericanos de Música Contemporânea" (Latin American Workshops for New Music) between 1978 and 1989.