I came across this issue when creating a project for the Rudy Sarzo contest.

If I create a project with a track from another project (in which the owner doesn't want to change the mix track) I still want to credit the owner as one of the contributers.

The original owner of the track can upload it again, but it takes time...

I suggest adding an option in each track we upload that links the list of contributors of the existing track to the new project.

Regards,

Adi