Ooh, sparkly!

Avilata Nectilia Neonlight - some kind of Japanese web-experiment, from what I can tell. You'll need macromedia shockwave.

It's worth it.

Thanks, Raki. I was sitting in front of my computer for 20 minutes, enthralled.
And a further note: Waywind, this is how I see colors in dreams. And how I see music when I close my eyes.