Kotta

Forrás

Wagner, Wilhelm Richard. Das Rheingold. Vocal score. WWV 86A. Wagner, Wilhelm Richard. Piano and Voice. Kleinmichel, Richard. Complete Score. German. English.

Fordítás

Wagner, Richard Wilhelm. Das Rheingold. Vocal score. WWV 86A. Wagner, Richard Wilhelm. Zongora és Hang. Michel Klein, Richard. Complete Score. German. Angol.