Music Collaboration is really starting to take off on the internet. What it basically is, is this:

You take an unfinished recording you have of and instrument (can be 1 track or2 tracks or more on it) but you need it to have other instruments added.

You signup for the OJS Collaboration Network (it's free for all members) and now you can upload the music you want tracks added to.

Now other members can come download your music to their computer to add their tracks to it and when done re upload it for more tracks to be added once again until a complete tune.

That's basically it in a nut shell.

Hope this helps all!

OJS