Your ears work. They're not special but they work.
You can tell when notes are obviously different but the subtle stuff goes right over your head. And through your ears. Without registering. You enjoy music normally, you can tell when someone's singing off-key (if it's REALLY off-key), and you have a functioning relationship with sound. You're in the majority. Most people land here. Your ears are baseline human ears doing baseline human things.
Get your read — free on iPhoneyour ears are normal. which means you hear music the way most people do — enough to enjoy it, not enough to be haunted by it.