I made this video in 3DS Max and it uses the audio float function inside of the Curve Editor. It uses a song found in Fruity Loops and was made by Jason-C.
Whats amazing about the video is the fact that each object is animating to each individual instrument being played by the Techno Song.
Click On the link below to see the video.
http://3dsmaxonline.com/3d\_videos/3ds\_max\_video1.html