Portal Theme Cover With Lasers of the Day

It may not be GLaDOS, but an Automated Laser Corporation 20-watt fiber laser playing Jonathan Coulton's Portal closing theme "Still Alive" by etching an Aperture logo onto a steel plate is still nothing to mess around with.

The creator of this experiment points out that laser markers aren't exactly made for making music, so parts of the song are out of key or out of tim