I'm the same way, but with classical music. I can "listen" to pretty much any piece I've ever played. And in fact I often can't stop it. The second a person or conversation or situation loses my interest, the music turns on in my head, and I'm no longer paying any attention to you. I'm listening to a Brahms quintet or a Beethoven symphony. I hear it just as clearly as if it were playing over speakers.

It's actually kind of a problem. I don't in general have a particularly wonderful memory. It's just that I constantly reinforce.