What you are seeing in this video is the MusicInk, an it is quite interesting. I highly suggest watching it so you can see something that is difficult to describe.

This is how it works. You can use the MusicInk to paint something, and then connect it to an Arduino Duemilanove board and Sparkfun MPR121 controller. After the MusicInk has dried, you can play it like notes. Seriously, you can play a paper like a piano, smack a certain spot like a drum, and strum a few bars.

In all honesty, I can only see this being used in one place: elementary school music lessons. Should I put MusicInk on my wallpaper?

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