This is a demo that visualizes a piece of music: Death Ecstasy by ZeRo-BaSs. 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.
So, this whole thing pretty much just popped into my mind one time while I was listening to this song. It was quite an ambitious idea and it indeed took really long to make this demo. Compared to my earlier demos this one is the shortest one yet but took dozens of times longer to create than the others which probably tells something. It was also nice that I got to combine some of my earlier experimental stuff into this one such as the landscape generator and ray tracer.