Interactive art and technogoly: Messa di Voce
I have stumbled upon this highly creative way of combining interactive technology with the arts. And now it popped up again in my own RSS reader again, and I thought: this is absolutely worth posting, so here it is: Messa di Voce (by Golan Levin, Zachary Lieberman, Jaap Blonk and Joan La Barbara).

Messa di Voce is a performance and installation in which the speech, shouts and songs produced by two vocalists are augmented in real-time by custom interactive visualization software. The visualization software used is Processing. Really a must see!! If you’re in NYC, you can watch the performance live and for free on February 23rd, so be sure to be on time!