This is a video sample of a circuit bent Barney guitar. It has several songs that you can play with several different instruments. The cool feature is that you are able to "play" by waving your hand in a strumming motion inside the circular part blocking the light of the LED. I've added a wide ranging pitch knob, a 1/4 inch ouput, and a robo-glitch switch. The robo switch is the best part IMHO. It changes the regular sounds into strange computerized glitch notes that can be control with the pitch knob. I removed the speaker to make room for the controls. (less info)