YouTube Video with some Microtonal Theory

Here's a youtube vid I put up recently for those who don't frequent facebook:
http://www.youtube.com/watch?v=jCDMkmVMA2I

It tries to explain the difference between sharps and flats by showing that in different tunings they are different pitches, and that that's the difference you imply even in 12-edo. It's a little dumbed down for a broader audience, but I think it makes a decent point.

John