E. Grosskopf
Dialectics, Op. 9 (Version 5 for Tape, Flute, Viola & Trombone)
Vinko Globokar, Claude Lelong, Erhard Grosskopf, Eberhard Blum
Dialectics, Op. 9 (Version 1 for Tape, Flute, Clarinet & Trombone) [Live]
Eberhard Blum, Vinko Globokar, Erhard Grosskopf, Hans Deinzer