bug: Multiple album artists not supported

[baloe]

System Details OS: Manjaro Arch: x64 Desktop Environment: KDE Version: v3.3.0 Installed by: Compiled (AUR, https://aur.archlinux.org/packages/cantata-qt6)

Describe the bug I have several albums with multiple album artists.
(This is often the case with jazz music where artists would collaborate on an album.)

The album should be listed for each one of the multiple album artists tagged with the songs of the album.

Instead, the album is only shown for one of the album artists. When playing the album, only that artist is listed in the now playing information, although the track is tagged with multiple album artists.

Expected behavior
The album should be listed for each one of the album artists tagged with the contained tracks. When playing a track, the now playing information should list all album artists.

Additional context
Related bug report (in case this really is only an issue with mpd):
https://github.com/MusicPlayerDaemon/MPD/issues/2293

[gbcox]

It looks like Cantata is working as expected—see attached screenshot. Both album artists are shown in Now Playing, and the album is indexed correctly under each name in the library.

If you're seeing different behavior, I'd double-check your tagging. MPD expects a single AlbumArtist field with both names—either as a delimited string or a proper multi-value tag (e.g. ID3v2.4 or Vorbis).

Using two separate AlbumArtist fields can break parsing and lead to inconsistent behavior. If you're not already using MusicBrainz for tagging, I’d highly recommend it—it produces clean, MPD-friendly metadata.