Kevin of The Nettles has this quandary about music-synchronized Christmas lights:

There’s this Xmas lights video (make sure that you have your sound on): Wizards of Winter [new, better link]
Lots of other video links to crazy Christmas light displays

[Ed: Updated those links; thanks Afro! -PK] Do you happen to know the origins of this video? It looks like the light display was implemented with a MIDI control to a lighting rig but there’s some speculation in the blogosphere that it’s a PC video editing job. I’d be curious to know what kind of rig you’d use for something like this, though not for Xmas lights.

Technical speculation after the jump . . .