Wotan hopes that this may be consummated by a human hero who, free from the lust for power which obtains among the gods, shall, with a sword of Wotan's own forging, slay Fafner, gain possession of the Rhinegold and restore it to its rightful owners, thus righting Wotan's guilty act and freeing the gods from the curse. To accomplish this Wotan, in human guise as Wälse, begets, in wedlock with a human, the twins Siegmund and Sieglinde. How the curse of Alberich is visited upon these is related in "The Valkyr."
The dramatis personæ in "The Valkyr" are Brünnhilde, the valkyr, and her eight sister valkyrs; Fricka, Sieglinde, Siegmund, Hunding (the husband of Sieglinde), and Wotan. The action begins after the forced marriage of Sieglinde to Hunding. The Wälsungs are in ignorance of the divinity of their father. They know him only as Wälse.
Act I. In the introduction to "The Rhinegold," we saw the Rhine flowing peacefully toward the sea and the innocent gambols of the Rhinedaughters. But "The Valkyr" opens in storm and stress. The peace and happiness of the first scene of the cycle seem to have vanished from the earth with Alberich's abjuration of love, his theft of the gold, and Wotan's equally treacherous acts.
This "Valkyr" Vorspiel is a masterly representation in tone of a storm gathering for its last infuriated onslaught. The elements are unleashed. The wind sweeps through the forest. Lightning flashes in jagged streaks across the black heavens. There is a crash of thunder and the storm has spent its force.
Two leading motives are employed in this introduction. They are the Storm Motive and the Donner Motive. The Storm Motive is as follows:
[[Listen]]
These themes are elemental. From them Wagner has composed storm music of convincing power.
In the early portion of this vorspiel only the string instruments are used. Gradually the instrumentation grows more powerful. With the climax we have a tremendous ff on the contra tuba and two tympani, followed by the crash of the Donner Motive on the wind instruments.