Scanner or Metadata Agent?

I would like Plex to read my music track ratings embedded in a metadata tag upon import and write the corresponding track rating to Plex’s music database. Would this be a custom scanner or Metadata Agent?

Duplicate of https://forums.plex.tv/discussion/310059/scanner-or-metadata-agent#latest

@ZeroQI said:
Duplicate of https://forums.plex.tv/discussion/310059/scanner-or-metadata-agent#latest

Yes, I apologize. I was posting from my phone and it got stuck and then double-posted. I could edit but could not delete the post from my phone.