__ of Rhye, Mercury-Written 1974 Hit for Queen

Puzzle 17 of Yoga Hard Pack

Question is: __ of Rhye, Mercury-Written 1974 Hit for Queen

and the answer is: SEVENSEAS

Word Meaning:

SEVEN SEAS — (poetic) All the oceans of the world, in a common modern interpretation, the North and South Atlantic, North and South Pacific, Indian, Arctic and Antarctic Ocean, but historical interpretations differ widely.

Definitions from Wiktionary.