Sound: granular synthesis of a reverse reverb and ping pong delayed music box sample Graphics: a line of flares with delayed y-axis values moving from left to right and some boxes Sensors: 2 potentiometers and one button attached to the arduino. One potentiometer controls the reverberation amount and also turns the circles more blue. The other potentiometer controls the speed playback of grains and this adds some more red to the circles. White rectangles come up when you push the button. You can hear this when some filtered pink noise is panned across from the left to right channel (or right to left channel -- randomly determined.) The circles move up and down depending on the overall audio. A bit of randomness is added to the height of the circles to maintain movement throughout.