In the same vein is Electroplankton, by the Japanese wizard Toshio Iwai. You get to make your own “video.” A sample here:
But there are other ways to visualize music. One cool experiment projects notes in color stripes which accumulate as the piece is played. The device is called a Clavilux 2000, invented by Jonas Heuer.
As Fast Company notes about the gizmo:
Length and vertical position show the force of impact, while width shows how long the note played; the colors correspond to various tonalities. (Discordant notes are marked in contrasting colors.) Thus, the more tonal variations a piece has, the more colors will show up. When a piece is over, the visualization remains, as a visual summary of the music that was just played–what notes were played most, which were loudest, and what harmonies the piece revolved around.