- Sigrid Wiesmann
(b Vienna, April 22, 1941). Austrian composer, conductor and stage director. He studied at the Vienna Hochschule für Musik (teaching diploma, 1965) with Schiske, von Einem and others and at the Paris Conservatoire (1967–9), where his teachers included Messiaen and Leibowitz; he also studied electro-acoustics with François Bayle and Pierre Schaeffer. He has worked as a freelance composer for Austrian Radio (from ...