Force Plex music library to add Album directory?

My music library is structured Artist/Album/tracks

I’ve become aware that quite a few albums have not been added to library.

In most cases the artist & album is listed in Musicbrainz and other indexers.

Is there anyway I can get Plex Server to add the missing albums to library without attempting a complete rescan of everything?

Just worked out that if I force a file date change it’s picked up on the next scan.

That’ll work, but if there is an easier way tel me.

Thanks