[itsme]

In my MobileSheets every band / line-up has a separate collection and that's it. For some songs I use the same MobileSheets-song in multiple collections (=band), for some songs I use a copied MobileSheets-song that refers to the same file, for some songs I use different MobileSheets-songs referung to different files - whatever is adequate.

For a rehearsal with one of my bands or to prepare a setlist for a band I just select the collection for that band.