This plugin will allow you to use VGMDB metadata for a Plex music library.
VGMDB.bundle
to your Plex plugins directory.To use the agent, create a new basic music library in Plex and select VGMDB as the metadata agent. If you want to enable track renaming, enter your Plex token in the agent settings. This will only work for single-disc albums.
Thanks to https://github.com/hufman/vgmdb for making VGMDB data usable.