GNOME Bugzilla – Bug 727669
There is no way in Rhythmbox to refresh renamed/updated tags of songs. The old tag remains.
Last modified: 2014-04-05 21:55:46 UTC
After changing the names of the ID3 tags the updates don't show up in Rhythmbox. There should at least be an easy graphical way to reload/update the library, or better yet, have it detect changes automatically. I have to do it manually by deleting ~/.local/share/rhythmbox/rhythmdb.xml every time I edit a tag of a song.
Rhythmbox does detect changes automatically, unless your tag editor deliberately makes this harder by preserving the original file modification time.