Fix the MusicBrainz search not taking into account the album/recordin…

[nicomem]

…g aliases

Description

When searching on MusicBrainz, beets does not add the alias field that allows for searching on the entity aliases.

As per the MusicBrainz Indexed Search Syntax:

alias | (part of) any alias attached to the release group (diacritics are ignored)
[...]
release | (part of) the title of any of the releases in the release group

By adding the alias field assigned with the entity title, the search returns better results for titles that can be aliased.

The problem can be reproduced with the following album: https://musicbrainz.org/release-group/b5b4eed2-e871-4268-80bb-7625ee0c6cd0:

• Currently, beets searches using the following query: release:(rude lose dance \- single) tracks:(1) artist:(minami)
  • We can see that the correct album cannot be found (even after 5 pages!)
• With this PR, beets now searches using the following query: release:(rude lose dance \- single) alias:(rude lose dance \- single) tracks:(1) artist:(minami)
  • We can see that the correct album is now found in 1st position!

Tests had to be updated due to the addition of the alias criteria.

To Do

• Documentation.
• Changelog.
• Tests.

[Copilot]

Pull Request Overview

This PR addresses the issue where MusicBrainz searches were not considering album/recording aliases by adding an alias field to the search criteria.

• Updates the album criteria generation in MusicBrainz plugin to include the alias field.
• Adjusts candidate search criteria to incorporate alias matching.
• Updates the changelog and tests to reflect the new alias inclusion.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
test/plugins/test_musicbrainz.py	Adds a test case check to validate the alias field is set.
docs/changelog.rst	Updates changelog to document the alias search improvement.
beetsplug/musicbrainz.py	Adds alias field into album criteria and candidate search.

[snejus]

Looks great, thank you!