DEERFIELD TWP. - Carson Williams' two-story home is decorated top to bottom with 25,000 Christmas lights - but that's just the beginning. He used software to program them to 12 minutes of Christmas music. The result is a dancing display of synchronized lights that he says you have to see to believe. This is the third year for the show, which gets bigger every season. It took Williams about three hours to program each minute of music. Williams broadcasts the music from a low-power transmitter in his computer to an FM radio station. A sign tells passers-by to tune in. An electrical engineer for Cincinnati Bell Technology Solutions, Williams said it was time consuming, but worth it.