This is a demo that visualizes a piece of music: Maneesh by ZuneInc. The program that does the visualization runs in realtime and is coded by me. You won't be getting the program but this video instead that shows the program in action.
On top of running in realtime the program is also capable of rendering the video into a bunch of png-files and here's some stats to spare: The video runs at 30 frames per second and it took about 39 minutes to render and save the 6092 frames in 1080p. The resulting png-files took about 4.06 Gigabytes of memory.