I might be in the minority, but I think 60s band H.P. Lovecraft was pretty good. Like some of their harsher critics I find the prospect of listening to an entire album at once a little much, but many of their songs were fun tributes to some of weird fiction’s most famous stories.
Music is supposed to be enjoyed, not pondered, so here’s a video someone uploaded of their song At the Mountains of Madness. Groovy!