The Duo Goebbels/Harth (1975–1988), combining German composer, music-theatre director and keyboardist Heiner Goebbels and German composer, multi-media artist and saxophonist Alfred 23 Harth became famous for its adaptation of and departure from European composers, especially Hanns Eisler, implemented in a provocatively fresh manner into structured free improvisations and deploying content from areas beyond music. The duo was nicknamed the “Eisler brothers” by music critic W.Liefland.