In the Library view it would be ideal to report the # of times a given Media item is used across the system.
For example, if Media item 20 appears in 3 Playlists, it would be great to see “3” as “# of Times Used”. This would allow a quick scan for items that are not in use for auditing/management purposes.
I realize Tidy Library can be used to remove unused items… but in some cases I’ve found it helpful to see the unused items without having to delete them.