It wasn't exactly heavenly, but it's definitely the most transcendent musical experience I've ever had. I left some music playing over night and at some point "Heroin" by The Velvet Underground came up. I woke up at like 3 am in the middle of the climax of the song. It absolutely terrified and amazed me and I thought my computer might've either been broken or haunted. I spent 10 minutes the next day trying to figure out what I had just heard.