Stream music and podcasts FREE on Amazon Music. No credit card required.Listen free 1. Undine, Act I: "Ach, welche Freude, welche Wonne!" (Undine, Tobias, Marthe, Pater, Hugo)Orchestra Sinfonica della RAI, Robert Heger, Valerie Bak, Heinrich Sailer, Ina Gerheim, Rudolf Wünzer, Josef Traxel