I got the inspiration for this when I went to Tulsa to see CAKE and Gogol Bordello live in concert. Oh yeah! I saw CAKE and Gogol Bordello live in concert! Woooooo!
woooooooooooooooooooooooooooooooooooo
Anyway, one of the other bands I saw was The Uglysuit, whose stage decoration involved simply putting a huge black tarp over all the junk behind the drummer (Why was there all that junk on the stage anyway?). It was a windy day, and as the wind blew, the tarp would billow, inflating and deflating almost in time with the beat. Almost.
But it would totally be possible to create that effect intentionally, and in time with the music! It would need an inflater, like those used in bouncy houses, with some computer control system. The control system is needed in order to ascertain the rhythm of the song and time the inflation/deflation appropriately. You could try it with a cruder system where inflater-activity and volume are directly proportional, but then the visual effect would have a delay effect and that would just look weird.
