I created my software for visual and a later i created i touch screen with lycra where people can draw. So, during the concert, if people don\'t draw, there are not visual. But if people draw, they collaborate for the good experience of the performance.

You can find more information (in italian) and video here:

http://www.mauroferrario.com/blog/2012/12/28/lycra-touch-plusapv/

and the very first code here:

https://github.com/mauro-ferrario/APV-Touch