I reported a problem here:  https://github.com/lyarenei/jellyfin-plugin-listenbrainz/issues/10

Basically, the listenbrainz plugins for Emby and Jellyfin don't scrobble the multiple artists for tracks.  I'm being told "Listenbrainz API does not specify format for artist name field if a track has multiple artists credited. "  However, other programs I use:  qmmp, mpris-scrobbler, rescrobbled, Plex (using eavesdrop.fm), Tidal (using android Pano Scrobbler do this with no issues.

Is it true that there is no recommended, standardized way to do this?  I would think it would be a standardized feature.

Thanks very much!