Friedrich Cerha (; 17 February 1926 – 14 February 2023) was an Austrian composer, conductor, and academic teacher. His ensemble in Vienna was instrumental in spreading contemporary music in Austria. He composed several operas, beginning with ''Baal'', based on Brecht's play. He is best known for completing Alban Berg's opera ''Lulu'' by orchestrating its unfinished third act, which premiered in Paris in 1979.
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