The Creatures of Prometheus by Simon Russell is a generative visualization of a Beethoven song, using pulsing graphics in coordination with the music to create a visual representation of the ballet. The animation is driven by a program (I think it’s a MIDI file, possibly through the Houdini program) that takes into account the pitch, note, and volume of the notes of the ballet and translates these factors into visual components like color and position that correspond to the particles that make up the visual representation. I like the extra dimension that this visualization gives to the ballet, allowing for a modern voice to be spoken through the traditional ballet piece.