Mongoose has a ton of tracks completed
Some of them are better than others. ;)
@eleazar: The only guaranteed places for different things to be playing at the moment are 1) game title screen, 2) galaxy map, and 3) combat. The first can't really be race-specific, since you haven't chosen a race yet at that point. That leaves a situation where we can probably get away with as little as two tracks per race. I think that's very doable, and also well worth doing, personally.
Any additional categories, or additional tracks in existing categories for variety, will probably stay non-racial, at least for a while.
Also please keep in mind that the powers that be are reluctant to fully authorize, or forbid for that matter, anything on this subject until later in development. That being said, as a minor insignificant power myself I have set forth the semi-official plan for the moment, which is to contribute anything people want to or feel might prove useful, and we'll sort it all out later.