When Pink Floyd’s The Dark Side of the Moon was released, in 1973, I was five years old. I saw the cover for a cassette tape of the album in a store, grabbed it, and wouldn’t let go. Apparently, I’ve always liked triangles.
My parents had to pay for the tape, just to get us out of there. My father tried to turn this into a little life lesson for me (“Don’t judge a book by its cover,” or some such crap). When we got home, we played it, and everyone involved had to admit that picking music based on cover art does, sometimes, actually work.