Would it be possible to somewhere show how many times was particular song played or how many times it is/was used in setlist? When I play solo, I would sometimes like to know what are the most played songs (I usually play at request).
I currently don't track how many times a song is loaded or is/was used in a setlist, so I wouldn't have a way to show that information. I could certainly look into adding database fields to track those things along with some way of viewing the information (maybe a new details pane that slides out or a popup window that is accessible to view details for a selected song).
This isn't top priority at this moment, but it would really be useful for me. Another way might be new tab in library similar to "recent" but this would be "most played".