Looks lovely and nice music!
Sadly, I could barely get going :( It appeared that the audio/video timing was off, as it seemed like the middle box was not pulsing in sync with the audio. I know, I know, I might be terrible-- but it's hard to tell when I just die over and over on the first beat or two of the song. It would be awesome to have a video/audio sync setup, so I can tweak latency if needed.
Another nice feature could be to have a training / can't die mode that provides some feedback a la DDR ("Perfect!" and "Almost")
Thanks for making and sharing!