> I also hear songs everywhere. That trumpet note held on the jazz recording you are listening to? That's the same guitar note that starts this other song, and now I'm stuck hearing it in my head. What, that doorbell doesn't remind you of the beginning of a Haydn symphony? Well now I know what's playing in my head for the next hour.

Interesting. I've had no musical training, but I end up noticing "matches" like these constantly. Is there a way to test one's pitch sensitivity?