hahaha....you are funny Jon ;)

I often think of this concept.
My thoughts are that the constant listening and sensation of rhythm help to time your body. Like if you listened to the tick of a clock all the time, I bet you would be able to count seconds just as good as a clock without looking at or hearing the clock. Just from being familiar from constant exposure.

From years of techno I can picture a tempo in my head and tap it out on the machine and be within 1BPM of what I reckoned it would be.

There is definately something in it. Everything is in cycles or frequency so being exposed to a rhythm so often would have an effect of some kind....maybe we need a study into it?