ヘルムート・ラッヘンマン
He was an eminent musician who has had an influence on various artists and played at the premiere of a number of works that have become a part of the Clarinet repertoire, such as works by Helmut Lachenmann, Isang Yun, Edison Denisov, Jean Françaix, Gia Kancheli, Krzysztof Meyer, amongst others.