From one of these views, you can filter for Modified songs to see what has changed in that library. You can further filter for songs modified only in a specific field or fields to make sure that you haven't changed anything you didn't want to change. It's generally important to verify any changes to "Song Data" (Name, Artist, Album or Genre).
If a song has been modified by mistake, use the Song Info Pane to change individual fields or simply revert the songs in question.
Other Operations