Richard Wagner called Die Walküre the “first evening” of the Ring of the Nibelung; he called Das Rheingold the prologue or Vorabend. Musically and dramatically, we are introduced to a radically new and different world when the opening bars of Die Walküre resound. A fully developed orchestral palette of Leitmotivs paints a wild storm scene, and the curtain rises on a modest dwelling: a fully human scene that has nothing to do with the gods, dwarves and nymphs of Das Rheingold. At the same time, however, the way Die Walküre portrays radical be...