In his arrangements for voices, he used text freely, for example a combination of a French poem by Rilke with poetry by Mallarmé in his arrangement of Debussy's prelude for piano Des pas sur la neige.
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Among the composers who wrote music for the ensemble are Pierre Boulez, Brian Ferneyhough, Vinko Globokar, Gérard Grisey, Heinz Holliger, Mauricio Kagel, Helmut Lachenmann, György Ligeti, Krzysztof Penderecki, Steve Reich, Dieter Schnebel, and Hans Zender.
Klement Gottwald | Siegfried Gottwald | Łukasz "Dr. Luke" Gottwald |