I was listening to a lot of Genesis as a kid when I was first playing D&D. I've no idea what effect that might have had on me as a kid, but I can't help but think that some of that 70's music was Gygaxian, or at least Tolkien inspired.
Dancing With the Moonlit Knight ... Lyrics... Interpreted
Dance on a Volcano ... Live Video and Lyrics
The Fountain of Salamacis ... Live Video and Lyrics
A Trick of the Tail ... (Lyrics)
There's a lot more from these years that's similarly themed, most of it was really led by the more talented Gabriel (vs. Collins), but I didn't give up on Genesis until after Abacab. The superb "The Lamb Lies Down on Broadway" album from 1974 was the band's peak, IMHO.
Demon City Appendix N (Part 2: Movies)
9 hours ago