SIEGFRIED.
Brünnhild'! A lover comes!
TARNHELM.
The meaning is clear, and the kinship of the Forgetfulness and Tarnhelm themes unmistakable. Siegfried uses the Tarnhelm but this once in the whole tragedy, and uses it because of the forgetfulness and in the guise of a Gibichung.
When Freia has been carried off by the giants to wait for Wotan's decision as to the ransom, Loge taunts the gods with their pallor and failing glory. As part of the accompaniment to his speech, we hear the motive of Departing Divinity:
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DEPARTING DIVINITY.
Now turn to the last scene of "Die Walküre," and when Wotan tells Brünnhilde that he will plunge her into unbreaking sleep we hear this same motive in this form:
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The theme is heard again in its fullest harmonies when the god kisses her eyes and she sinks to sleep. Here, again, Wagner uses uncertainty of tonality to produce an effect of mystery in his music.