Different Sites and different views of the same song, but they are all driven by MIDI.
Multimedia artist Andy Fillebrown creates visualizations of classical, public domain musical compositions. His YouTube channel, audiosculptures, is filled with 100+ spellbinding journeys through a tunnel of glowing, pulsing notes.by The Kid Should See This
Our own Eric Singer (Eric is on our educational advisory panel) posted this next video which uses three MIDI driven robots to play the Rimsky-Korsakov piece.
Not to be outdone by a machine (pun intended) here is yehezkel raz performing the piece on Ableton Push.
Here's another look at this piece from the Black MIDI point of view. If you don't know about Black MIDI check out this post.