Here's a mesmerizing web site combining motion graphics and musical tones
generated from a digital synthesizer. In fact, this stereo combination of
210 notes is only one of 17 explorations of digital harmony on this web
site, inspired by the work of the late John Whitney, who once worked with
Alfred Hitchcock on his classic film, Vertigo, before starting to film
motion picture and TV sequences using a computer in 1960 and later
composing his own music the very same way. (Taken from
www.mercola.com/2006/oct/24/hypnotizing-web-site.htm)
Check out this link for variation #16 of "Whitney's Music Box":