Music Illusions.

I like visual illusions so much that when I stumbled on this, I couldn't help but post it!

There are a bunch more - at least one of which I successfully linked Google Reader to - but such a cool concept ... your brain can just as easily screw up what you are hearing as what you are seeing ... yes! so cool.

enjoy the link.

btw - you might want a pair of really good headphones on hand to get the full effect (I used Bose noise reduction!).