No, we don't just have a "magic box" that we feed music into and have everything just work (although that would be much easier!). The computer controls everything, via a software package called Light-O-Rama. Each song is meticulously programmed by us for many hours per song so that each of our lighting circuits can react to different nuances in the music. Even if we reuse songs from year to year, these sequences need to be updated with additions and changes to the display. This can literally take hours of tedious sequencing time per minute of music you see when viewing the display. For more technical info please see this page.