We Are Number One But Its Played In Lasers (MIDI Laser Piano) RIP Stefán Karl Stefánsson 

RIP Stefán Karl Stefánsson (Robbie rotten) You will forever live on in the form of meme magic
The Laser Piano is a machine I've built that fires 88 lasers in time
with any MIDI song played through it. There is one laser for each individual note. See the video linked below to see how it works:
• MIDI Controlled Laser ...
More details and behind the scenes pictures can be found on my science blog here - halflife390scie...