Audio to light effects

Image I input my total mix to a special console would it be possible to get light effects depending on the tune and speed of the music? I am searching for such module / converter that allows to get individual lighting effects for my spotlights - like the ones fixed on this framework. Do you know where I can buy such a module or converter?

Maybe Conrad? http://www.conrad.com/Light-Effects.htm?websale7=conrad-int&ci=SHOP_AREA_17041

Maybe Conrad? [ SPAM SIGNATURE REMOVED BY MODERATOR ]