the guy who did this display has posted instructions on how to do it. I can't remember what the link is, but it did not seem too difficult. THe music is broadcast over a very limited area by radio. The music isn't blasting out in the neighborhood. You turn on your car radio as you drive by to hear it.....he has signs posted on how to tune it. Neat, Huh?
Just found the info:
This display was the work of Carson Williams, a Mason, Ohio, electrical engineer who spent about three hours sequencing the 88 Light-O-Rama channels that controlled the 16,000 Christmas lights in his annual holiday lighting spectacular (from Christmas 2004). His 2005 display includes over 25,000 lights that he spendy nearly two months hooking up. So that the Williams' neighbors aren't disturbed by constant noise, viewers driving by the house are informed by signs to tune in to a signal broadcast over a low-power FM radio station to hear the musical accompaniment.
The rough quality of the video has led some viewers to believe it was put together in stop-action form from still photographs, but that is an artifact of the high compression used in the clip circulated via e-mail. Mr. Williams has posted instructions for recreating his "Wizard in Winter" sequencing, and another of his choreographed Christmas light music shows can be viewed here.
Here is the website with instructions on how to do it....
http://www.wonderlandchristmas.com/wizardsofwinter.php