Wagner: Die Walküre.

Die Walküre (The Valkyrie), WWV 86B, is the second of the four music dramas that constitute Richard Wagner's Der Ring des Nibelungen, (English: The Ring of the Nibelung). It was performed, as a single opera, at the National Theatre Munich on 26 June 1870, and received its first performance as part of the Ring cycle at the Bayreuth Festspielhaus on 14 August 1876.