Light up brick toys for parties

[Mrbrix_14]

Greetings fellas

I'm trying to make these laser pegs programmed to light up at different sound frequencies to put at parties.

Anyone's got any ideas how to accomplish this?

(skip to 1:58)
https://www.youtube.com/watch?v=RRcFYyiDKTM



http://www.laserpegs.com/

Thanks