For me it was Tanelorn by Blind Guardian. Hair metal in my head, all afternoon.
Sure Zoroastrianism had it's impact ('tho I'd argue that had bigger impact on Tolkein -- "keeper of the sacred flame" and all that) but I'd also throw out Chaos, the first god, as an influence:
https://en.wikipedia.org/wiki/Chaos_(cosmogony)
If you listen to any interviews with Moorcock he'll list influences all day -- his modesty is one of his better traits.
I think it had a bigger impact on Queen.
At least I
think Freddie Mercury was Zoroastrian, anyway. I didn't know Blind Graun also worked with Moorcock; as for Hawkwind, I haven't read the Elric books but the album was fairly interesting. Moorcock's poetry readings perhaps less so.
Edit: one day I'll actually remember to quote what I'm replying to beforehand...
