Australian Christmas Lights

This is how they do it in Australia. 

Actually, they have this to say for themselves:
40,000 LEDs, more than 5kms of cabling and 176 channels of light synchronised to music, all sponsored by Messages On Hold.com.au. Located in Bishop Riley Way Churchlands, Australia. Last year we raised $12k for the children's hospital, we're aiming for $20k and as at Dec 17th the total stands at $7,520. The track is Music Box Dancer by DJ Schwerde. Display uses $5 of power per night, they're mostly LEDs. Enjoy