Blindncool, sound schemes aren't really that common on Linux. Although, some desktops have specific themes, per se. I suppose I could go ahead and make a sound theme for Windows 7, but they don't have as many sounds as Windows has.
For example, the default theme for Gnome is pretty simplistic all things considered. There is the jungle drub beats when logging into Gnome, and there is a shorter version for logging out. The display manager usually has a short drub beat to indicate when the log in screen appears. There are a few other sounds for default sound, when toggling a radio button, etc but really its not that fantastic. So before I go ahead and package up a sound theme I'd be curious more as to what you were aiming for here, or is this just a curiosity thing.
Sincerely,
Thomas Ward
USA Games Interactive
http://www.usagamesinteractive.com