In music, valkyries play a major role in "Die Walküre" (1870) by Richard Wagner (the second of the four operas that comprise Der Ring des Nibelungen), in which the song "Ride of the Valkyries" appears at the beginning of Act III, and has appeared in various popular culture works since. Operation Valkyrie was a German Army plan that was converted into an attempted coup d'état that failed after the July 20 Plot (1944).
Den Sagenstoff verarbeitete im 19. Jahrhundert der deutsche Komponist Richard Wagner in seinem vierteiligen ZyklusDer Ring des Nibelungen, vor allem im „Ersten Tag“ dieser Tetralogie unter dem Titel Die Walküre.