Dieter Schnebel's Maulwerke for articulatory organs and reproduction devices performed by the Ensemble Berliner Festwochen and Hochschule der Kunste in Berlin under the direction of the composer.
The Polish premiere of the 1977 version of Achim Freyer and Dieter Shnebel took place on 18 September 1978 at the Dramatic Theatre of Warsaw as part of the 22nd Warsaw Autumn International Festival of Contemporary Music.
Performers: Anna Christine von Gablenz, Eva Loschky, Claudia Meili, Brigitte Stockmann, Martin Bachmann, Helmut Danninger, Christian Koch, Peter Treu.