Music made with Rubik's® Cubes?

The website reads:

"The Cubing audiovisual performance explores performative gestures through the relationship between colour and sound. The manipulation of simple Rubik's® cubes under video cameras sets off a chain of introspective synthesis and digital treatment. In this setup, the cube is an intuitively and precisely controllable audiovisual instrument."

So basically its two guys moving coloured blocks at cameras and creating insane glitchtastic textures. There's two movies demoing what the stuff is capable of here (35min.) and here (7min.).