What about related objects, things with multiple authors?

This question particularly raised issues of content like music which might have sheet music, lyrics, and perhaps an audio file of some sort. We imagine that each piece would be uploaded separately, but then linked through its metadata in some way. Certainly it would be helpful to be able to designate, as you upload a file, if it could work well with something else already on the site.

For something with multiple authors, we would need to be able to list all the authors linked to that content entry, but would require space to list contact information, etc. for each author.