Musicbrainz Metadata source and tag

Also, if you ever need to manually match an album or artist using the “Fix Match” feature, you can paste the MBID into the appropriate field:

You can use the Release MBID in the Album field of the Fix Match form:

Make sure you have the correct MBID. You want the Release, not the Release Group.

If you’re matching an Artist, you need the Artist MBID.