Friedrich Cerha

Friedrich Cerha (German pronunciation: [ˈfʁiːdʁɪç ˈt͜sɛʁha]; 17 February 1926 – 14 February 2023) was an Austrian composer and conductor. Today, he ismostly remembbered for conducting works of other composers, such as Arnold Schönberg, or Alban Berg. Cerha finished the composition "Lulu", by Berg, because Berg was unable to. For this he used Berg's notes. The premierre of the Opera was given 1979, in Paris. 
His ensemble, Die Reihe spread contemporary music in Austria. 
Cerha conposed several operas. 
He died on 14 February 2023, three days before his 97th birthday.