Is there any licence that can be used for artistic projects (images, music, etc.) that are similar to CC-BY-SA, but with the additional constraint that not only the resulting work should be made available under the CC-BY-SA, but also the underlying project files that were used to generate the resulting derivate work.So for example if I have an image file I've made using GIMP, and someone modifies it in any application (like Photoshop), I would also want that they publish these project files (.psd) as well along with their work.
Is there a share-alike licence for media which specifies that the project files must be published as well as the finished media?
copyleft;license recommendation;media