I studied music and developed an appreciation for nontonal music. It's an acquired taste and it wilts if I don't feed it. But whenever I want to get back into it, I listen to The Concord Sonata by Charles Ives. I don't know why, but I'm always able to enjoy it. I understand if you don't like it, or even if you loathe it. Like I said, I can't explain why I find this piece so attractive, so listenable. I love the performance below, but there's another performance on YouTube that tracks the sheet music here. That's just to the first movement, the other movements are separate videos.