This is really cool. They’ve analyzed swing music to try and figure out why it makes you want to move your feet.

It’s the backbeat, you can’t lose it.

Check these out:

That’s Ray Charles. Snapping his fingers. On the beat, with a variance of less than five milliseconds.

That’s about one beat of a bees wings. Give or take a little.

Here’s the full article.

(see, I do pay attention to things other than Emma Watson and Boobs).