The WDR Rundfunkchor Köln (West German Radio Choir Cologne) is the choir of the German broadcaster Westdeutscher Rundfunk (WDR), based in Cologne. It was founded in 1947. The choir premiered works by contemporary composers including Arnold Schoenberg's unfinished opera Moses und Aron in 1954, Karlheinz Stockhausen's Momente, Luigi Nono's Il canto sospeso, Bernd Alois Zimmermann's Requiem für einen jungen Dichter and Penderecki's St Luke Passion.