Another random piece of trivia I picked up when thinking searching on this is that the term 'trap set' comes from 'contraption'. I did not previously know this.
http://tommendoladrums.com/wordpress/?p=7
http://en.wikipedia.org/wiki/Drum_kit
It's most interesting to consider that the Drum Kit or Trap Set is basically about 100 years old. That's it. So the very idea of one person playing multiple polyrhythms all by themselves is less than 100 years old. (OK, ok, there's those pesky church organists and Bach freaks, too.... And they've been around for more than 100 years.)
Consider this idea, along with the idea in the article above that playing polyrhythms excites the brain in novel ways. (Actually those brain scans were just on folks LISTENING to polyrhythms. Imagine how haywire the scans would look if those brains were playing, rather than just listening.)
The brain had to adapt to be able to physically do this. So in the past 100 years, contraption set players have been adapting their brains in new ways.
So the question is: Did Stewart get good at polyrhythms 'cause he was smart, or did playing the polyrhythms actually make him smarter? Or both?
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