 Beginning in 1943, he regularly appeared at the Bayreuth Festival where he sang "Loge" in "Das Rheingold", "Siegmund" in Die Walküre and "Walther von Stolzing" in Die Meistersinger von Nürnberg, which was recorded (1943), Hermann Abendroth conducting.Suthaus was one of Wilhelm Furtwängler's favorite singers toward the end of Furtwängler's life.With Furtwängler, Suthaus sang (Berlin, 1947) and recorded "Tristan und Isolde" (1952); "Der Ring des Nibelungen" as Siegfried (1953); and "Die Walküre" as Siegmund (1954) (Furtwängler's last opera recording).