Well i am sorry but this won't fit at all. I hope i don't sound too harsh but its too emtpy, it lacks a core melody and it lacks in variety. Sorry if i "destroyed" your expectations. :/ If you can expand the track, you'll probably could make a cool track out of it.
What is your music scheme for ambiant? I mean, do you use the same format (or nearly for each sound you produce for such or such a scene - like battlescape, geoscape .etc..) . For instance do you want always a music loop of let's say 3 minutes including a low introduction, then a silence, then a crescendo and so on, free to composer to fill with something that fetch to the initial global constraint?
I ask that because if you prototype your soundtracks like that, contributors should know easily what you are waiting for in general and would just concentrate on dressing the skeletton.
