Let's see if this works. It required a fairly crazy amount of cutting and pasting in the tag salad that YouTube provides: that was much more painful than making a sound, getting a half-minute of it, fading it in and out, then adding a picture to it to make sure YouTube would take it, then exporting it to a format YouTube would take, then uploading it.
The deal is I was always impressed with the Hunter S. Thompson trick of turning the TV channel - remember turning the things? - in between stations to get white noise to sleep to. The thing is that while white noise provides a lot of sound cover, it's the same sound from moment to moment, and if you're in the insomniac way then your mind is racing. If you use some hippie-style synth drones, though, the sound can get to this happy balance between enough variance to be distracting but not quite enough variance to be rousing.
Lately I've been letting this go all night: it's around Hallowe'en and here that means fireworks season. Not that we take anything away from The Lovely Daughter's ability to make crashing noises.
Neato! Works fine. They're all timed a little bit differently so once they get out of phase they shouldn't line up again for...too much math. Plus there are bound to be load-time issues.