Does Plex Dance lose music ratings?

Thank you for sharing some of your insight! My library is not quite as large as yours (~1200 Artists, ~2500 albums, ~32000 tracks). The mistake I made when initially fully moving to Plex was to not be aware of the significance of “Matching” and I’ve been building playlists, ratings, and play history with this incomplete Matched state.

I only discovered this because I am migrating the music library to different storage. I rsync’d the library to new storage path, added it in Plex music library, and was surprised to see 1:1 duplicates, with ratings missing.

In Movie or TV libraries, if there is a duplicate that is the same movie or episode, when you go to File Info, you will see two locations listed. I don’t know why this does not happen for a Music library.

So, I think my path forward is to:

  1. change the external mountpoint of my Plex LXC to the new storage, but keep the internal mountpoint the same as it is now (such that, to plex, it’s the same directory inside the container)
  2. manually match the unmatched albums (~500, so will be tedious)
  3. in parallel, using musicbrainz Picard to tag everything correctly for peace of mind/futureproofing

for #2 and #3, is there anyway I can trigger a re-match that is not the initial add to library? I understood that a plex dance was the only way to trigger an automatic re-match

As an aside, I understand I’m well into power-user territory here. Are there any other external tools you use to manage the library that is 3rd party to plex (Kometa?)