Is an example of an apposition:
The power of the music of the night
floating, falling ,sweet intoxication
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Consider the sentence "I spent the year in my favorite city, Detroit." It puts two phrases — "my favorite city" and "Detroit" — in apposition; the second phrase explains the first. Or "I just finished a novel by D. H. Lawrence, the least talented novelist in English" — the phrase "the least talented novelist in English" is in apposition to "D. H. Lawrence," and gives the writer's opinion of Lawrence. (It happens to be correct, by the way — you heard it here first.) read more here...