Michael Gielen

Michael Andreas Gielen (20 July 19278 March 2019) was an Austrian conductor and composer who promoted contemporary music in opera and concert.
He first worked in Vienna and was Generalmusikdirektor (GMD) of the Royal Swedish Opera. He conducted world premieres such as György Ligeti's "Requièm", Karlheinz Stockhausen's "Carré", and Bernd Alois Zimmermann's opera "Die Soldaten" and his "Requiem für einen jungen Dichter". He directed the Frankfurt Opera from 1977 to 1987. During his era, the company became one of the leading operas.
Gielen was also principal conductor of the Belgian National Orchestra (1969–1973), the Cincinnati Symphony Orchestra (1980–1986) and the Southwest German Radio Symphony Orchestra (1986–1999).
Gielen died on 8 March 2019 in Mondsee, Austria from pneumonia, aged 91.