Klaus Ager has been played on NTS in shows including Jim O'Rourke, featured first on 6 September 2023. Songs played include Immer Klingen Die Weissen Mauern Der Stadt.

Klaus Ager (born 10 May 1946 in Salzburg) is an Austrian composer and conductor.

Ager studied piano, composition, and conducting at the Mozarteum in Salzburg, and musicology at Salzburg University. He continued his studies in composition with Pierre Schaeffer and Olivier Messiaen at the Paris Conservatoire. From 1975 to 1986 he directed the Österreichische Ensemble für Neue Musik (Austrian Ensemble for New Music) (Wiesmann 2001). In 1977 he founded the ASPEKTE-FESTIVAL, which celebrated its thirtieth anniversary in 2006….