This was attempted a while back, and iirc it failed miserably. I've been collaborating with people on-line for years, so if you really are serious, and this isn't just a 'thought of the day' that will eventually fade into the briny deep, I could help this along.
Some quick guidelines:
- One person that knows how to mix should be the go-to person for all files.
- Each collaborator should only submit dry tracks, no effects. Desired effects can be added later. This is mostly for vocals, and there are some exceptions.
- Each collaborator should provide their work already timed in the mix, so it can be dropped in place with no trimming/extending needed.
- The piece of music should be divided into sections and those respective parts should be assigned to each collaborator before anything is submitted. This helps to prevent people from stepping on each other's parts.
- Drums/rhythm first. Always.
Hope that helps.