Album covers that look like the music sounds

Debut album by German band Dunst. The music fits the cover nicely.

Funny that you mention that last point, because I think In The Court of The Crimson King is actually the only early King Crimson cover that doesn't fit the whole album, actually. It definitely matches the opening track (as it should, because the screaming man on the cover is the 21st Century Schizoid Man), but I feel like the rest of the album demands something a bit darker, colder, and more passive as far as cover art. A woods in the nighttime kind of thing, perhaps.

As for In The Wake of Poseidon, I feel like the blend of colours mixing from one to another do a very good job of representing the way that the album flows between all its extremes. The deep red hues of Pictures of A City weaving into the light, tranquil blue of Cadence and Cascade, etc. 

And Lizard is probably the best matched to the album's contents, since the scenes are pulled directly from the lyrics. More generally, though, the cover art feels almost like a tapestry, which captures the album's complexity and intricacies, while also capturing some of the medieval, fantasy allure. 

Islands is a weird one because the Trifid Nebula painting really shouldn't make me think of the music at all, but it all makes sense in my head. 

Larks' Tongues In Aspic is another great one as far as I'm concerned. The ambiguous nature of it, the hippie-esque imagery, the coy expression of their faces; it feels like a gateway into the occult. Which, by the time Cross comes in with his violin ostinato in the opening track, you darn well know it is!

Love that one! I also find Eat A Peach to be a perfect cover for the music. Apparently it was designed with "and early-morning-sky feel" in mind, which I think they captured flawlessly, as did the band with tracks like Mountain Jam and Blue Sky.