>It would be interesting to measure the time between drum beats played by
>a professional drummer, to see how much variance there is in the
>intervals.

That would be pretty easy to do - just record some music onto your computer and
analyse it in a wav file editor. You should be easily able to track down the
start of consecutive hi-hat hits, certainly in the Wave Studio program that came
with my soundblaster it would be dead easy!

John