The Reisebuch aus den österreichischen Alpen, Ernst Krenek's wonderful travelogue, is a real tour de force. It is a fusion of the remembrance of things past - the Schubertian landscape of Austria and its cultural history - with the music of the 1920s. The very special demands it makes of its performers are effortlessly negotiated by world-class baritone Florian Boesch and the inimitable Roger Vignoles. Four songs by Alexander von Zemlinsky complete the program.