[BRX]

This is similar to my suggestion to be able to make a song a "root song" to which "subsongs" of the same title can be assigned. I was hoping this could be done (or implemented) with the versioning.

I imagine two possible further improvements. The root/sub files could be collapsible in the list so you can have only one entry per title in big collections or for sheets organisation. Also it would be need if the sub songs could share (some) of the metadata of the root song so it doesn't have all to be put in in all songs.