Via Designboom, a nice art project  from New York-based media artist Aaron Sherwood that utilizes an interactive stretched-fabric wall.

Firewall from Aaron Sherwood on Vimeo.

From Designboom:

made using processing, max/MSP, arduino and a kinect, the piece measures the average depth of the spandex from the frame
it’s mounted on. if the material is not being pressed against, nothing happens. when someone presses the panel, visuals react
around where the person applies pressure, and the music is triggered. an algorithm created with max allows the music to speed
up and slow down and get louder and softer, based on the depth. this provides a very expressive musical playing experience,
even for people who have never played music before. a switch is built into the frame which toggles between two modes.
the second mode is a little more aggressive than the first.