I've always had a sharp sense for relative tones - whether two notes are the same, or I can even tell specifically what interval they are, usually - but despite

I've always had a sharp sense for relative tones - whether two notes are the same, or I can even tell specifically what interval they are, usually - but despite having played organized music for eight years of my life I'm hopeless at telling you what note a tone or chord actually is (or what key something is in). Zero indication whatsoever. I do have a friend who can do that, though. You press the Bb key on a piano and he'll tell you it's a Bb and that it's slightly out of tune on the sharp end. It's amazing.