[mythtv-users] Mythmusic Compilations

Roger Siddons dizygotheca at ntlworld.com
Sat Nov 24 22:04:04 UTC 2012

>    I have set tag "musicbrainz_albumartistid" =  
> "89ad4ac3-39f7-470e-963a-56509c546377"
> I found
>      that tag in some Various Artists compilations I had brought in
>      from CD.
>      Mythmusic still does not recognize the .mp3 with above tag as
>      compilation.

I've had a closer look. The crucial tag is actually the TXXX (User Defined  
Text) field, which contains a list of name/value pairs.

Musicbrainz inserts a name/value of "MusicBrainz Album Artist  
Id"/"89ad4ac3-39f7-470e-963a-56509c546377", which is what Myth is looking  

Gui tools seem to have trouble coping with this tag format. I suggest you  
use a command line tag editor such as exiftool (from  
libimage-exiftool-perl package) to see the raw tags (use the "-a" flag to  
see the whole TXXX list")

I use Quod Libet, which won't show the MusicBrainz TXXX tag after I've  
done a lookup. If I add tag TXXX=89ad4ac3-39f7-470e-963a-56509c546377 it  
results in a name/value of  
"QuodLibet::TXXX"/"89ad4ac3-39f7-470e-963a-56509c546377". As you're using  
a Musicbrainz product I wonder what you'd get if you try it ?

You should also try just setting the tag "compilation"=1. It may well set  
the TXXX field automatically.

Failing that you could use a command line editor to set the TXXX  
name/value pairs. Unfortunately I don't think exiftool can write ID3 tags  
but there seem to be plenty around.
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