QA to investigate

Another interesting data point:
The composer Giovanni de Cascia showed up on the Artists menu on my SBC, but when I went through to list the albums, the list was empty.  Here's the tag:

TALB (Album/Movie/Show title): Early Music Festival
TCOM (Composer): Giovanni da Cascia
TCON (Content type): Classical/Medeival (255)
TIT2 (Title/songname/content description): Chon brachi assai
TPE2 (Band/orchestra/accompaniment): Early Music Consort of London
TPE3 (Conductor/performer refinement): David Munrow
TPOS (Part of a set): 1
TPUB (Publisher): London
TRCK (Track number/Position in set): 15
TXXX (User defined text information): (CDDB): f80bfe13
TYER (Year): 1969

Only track by this composer.  Again, no artist (TPE1), but composer, band, and conductor all set.

Eric, SqueezeCenter 7.0.1 has been released.  Please upgrade and report if you still see this issue, thanks.

Nope, still there in 7.0.1.

assigning to myself, will attempt to fix for 7.1.

It'd be helpful for debugging if I could have a file attached to this bug that has these tagging properties.

cc:ing Andy for some feedback

what I've found is that Slim::Control::Queries::albumsQuery has no code in it to honor the "include Composer, Band and/or Orchestra in Artists" user preference. Further, Slim::Schema::ResultSet::Album::browse also does not have any code for this.

I've been trying to model a fix on what's done in Slim::Schema::ResultSet::Contributor::browse --

----
my $roles = Slim::Schema->artistOnlyRoles;

# The user may not want to include all the composers / conductors
if ($roles) {
    # Bug 7992, Don't join on contributorAlbums if this is for a genre query
    if ( !exists $cond->{'genreTracks.genre'} ) {
         $cond->{'contributorAlbums.role'} = { 'in' => $roles };
    }
}
----

however, everything I've tried thus far has resulted in bad SQL. Any ideas on what's required here? Also, is this a fix that should be in the Schema area, or directly in Queries.pm?

The pref works fine when browsing album lists in playerUI...I'm a bit at a loss as to why though, since Album::browse isn't explicitly doing anything to include Composers, etc.

Huh, the only place the composerInArtists pref is used in Slim::Web::Pages::Playlist, and even there it's not even used for anything!  Does this pref do anything?

Does anyone know of a bug with a sample set of tracks that can be used to reproduce this?

Created attachment 3546 [details]
mp3 file with artist tag removed and composer tag left intact

another try at uploading

many thanks to Andy for providing a patch for this.

fix is checked in 7.1 change 21615

unfortunately, the fix for this bug caused numerous other issues (incomplete album list loading, bug 8717 and possibly 8711)

I reverted the fix in 21745

reopening bug

Punt to you Andy...like the other VA bug, as in bug 8426, my recommendation is to punt on to 7.2 if you don't see an obvious fix

i know its the SBC but seems related to me to bug 8380

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I have almost the same problem as discussed here. There are two small differences:
1) I use FLAC files. ARTIST is in some files unused for the same reasons given by the OP.
2) Everything shows up correctly in SqueezeCenter (and now in SqueezeBoxServer 7.4.1). But lists are empty on the Controller if ARTIST is empty.