Wow!
Holy crap! This guy on Letterman just did the coolest freaking thing EVAR!!! They had a bunch of wine bottles lined up, with certain spacing, and a specific amount of liquid in them (to get a specific pitch) and he skated by on rollerblades. No big deal, you think. He had something sticking out of the skates to tap the bottles as he rode by, therefore getting a certain pitch to sound. They had them lined up in such a way to play Mozart 40. It's a bird, it's a plane, it's a Mozart...It was awesome!