MIDI Controlled Laser Piano 

(Skip to the last quarter of the video if you just want to see the device in action)
The perfect blend of electronics and music. A device I have designed and built connects a laser to each MIDI music note. When connected to a MIDI keyboard or any MIDI music software it creates a stellar light show and provides a perfect way to visualize your favorite songs.
SEND ME A MIDI to play on it or suggest a song and if I can, I will find a MIDI file for it.
More details and behind the scenes pictures can be found on my science blog here - halflife390scie...