There are a number of relationships that Picard does not retrieve in its web look-up, namely: area, event, label, place and series. I guess there was some reason for this, but it may be that the relationships were added after Picard was initially developed and no-one added them in.
Of particular concern to me is the series relationship. Including this would help to address the issue raised in A Picard (plugin) request/wish and go some way to helping resolve the conundrum posed in
BBC Music Magazine release names.
The most basic fix is really simple - just adding
to line 437 of album.py. That would permit plugins such as Classical Extras to pick up the data, even if Picard doesn’t create any metadata tags itself.
Is there any possible objection to this? I can’t see that it would create any significant processing overhead and it is a very quick fix.
In the longer term, would it also make sense to add the other missing relationships and maybe add some tags? After all, the “use release relationships” and “use track relationships” options in Picard imply that these relationships will be provided. As it is now, you can see relationships in MB but Picard doesn’t show them.