What's the criteria for when a scrobble is linked to Musicbrainz?


You’ll have to excuse I’m probably just being slow but: what is it that makes some listens link to Musicbrainz while others (most, in my case) do not?


Listens in ListenBrainz are only linked to MusicBrainz if there are recording MBIDs in the tags of the listened files and if the software you use to play and send listens with reads those tags.

See also this thread and this one.