Dynamic wallpaper, dynamic background soundtrack

If I were a fan of wallpapers, I'd want some dynamic background - changing just enough to be called dynamic, but never calling for attention. You know, most quality video content, like TV news, have something moving in the background sometimes. Same goes for lots of graphical filler content. Flash- or SVG-based, I want some gradients changing in the background all the time - wouldn't that be nice?..

Music is another thing. What I want is a dynamic soundtrack, parametrized by some instrument set and dynamic range, things like that, adapting to whatever I do at the moment. If I'm browsing - some lounge-like stuff, if I'm typing - a bit more structured/active texture, if I'm watching a movie, or listening to a podcast/music - fade out. It should also adapt to my sleeping pattern, waking me up when I've slept enough based on previous nights