ヘルムート・ラッヘンマン
He is engaged in aleatoric composition, variable forms and structures as well as notation. Influences include John Cage, Morton Feldman, Hans Werner Henze, Helmut Lachenmann, Violeta Dinescu, Derek Bailey, Keith Rowe and old lute music. He was the first musician to transform the concert guitar by means of computer patches and live processing.