Like the background noises of a 1950s SF film.
You know, like one of the ones where John Agar is flying off on a cheesy spaceship to fight the invaders from the moon or something.
Great in the headphones.
Dang it, my sister picked up the receiver when my download was at 96%. That is a very interesting soundscape. It had enough going on to keep my interest the whole time. It reminded me a little bit of the sound art that was Revolution number 9.