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73 lines
2.6 KiB
ReStructuredText
73 lines
2.6 KiB
ReStructuredText
LastGenre Plugin
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================
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The MusicBrainz database `does not contain genre information`_. Therefore, when
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importing and autotagging music, beets does not assign a genre. The
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``lastgenre`` plugin fetches *tags* from `Last.fm`_ and assigns them as genres
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to your albums and items. The plugin is included with beets as of version
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1.0b11.
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.. _does not contain genre information:
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http://musicbrainz.org/doc/General_FAQ#Why_does_MusicBrainz_not_support_genre_information.3F
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.. _Last.fm: http://last.fm/
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The plugin requires `pylast`_, which you can install using `pip`_ by typing::
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pip install pylast
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After you have pylast installed, enable the plugin by putting ``lastgenre`` on
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your ``plugins`` line in :doc:`config file </reference/config>`.
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The plugin chooses genres based on a *whitelist*, meaning that only certain
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tags can be considered genres. This way, tags like "my favorite music" or "seen
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live" won't be considered genres. The plugin ships with a fairly extensive
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internal whitelist, but you can set your own in the config file using the
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``whitelist`` configuration value::
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lastgenre:
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whitelist: /path/to/genres.txt
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The genre list file should contain one genre per line. Blank lines are ignored.
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For the curious, the default genre list is generated by a `script that scrapes
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Wikipedia`_.
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.. _pip: http://www.pip-installer.org/
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.. _pylast: http://code.google.com/p/pylast/
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.. _script that scrapes Wikipedia: https://gist.github.com/1241307
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If no genre is found, the file will be left unchanged. To instead specify a
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fallback genre, use the ``fallback`` configuration option. You can, of
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course, use the empty string as a fallback, like so::
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lastgenre:
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fallback: ''
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Canonicalization
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----------------
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The plugin can also *canonicalize* genres, meaning that more obscure genres can
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be turned into coarser-grained ones that are present in the whitelist. This
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works using a tree of nested genre names, represented using `YAML`_, where the
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leaves of the tree represent the most specific genres.
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To enable canonicalization, first install the `pyyaml`_ module (``pip install
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pyyaml``). Then set the ``canonical`` configuration value::
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lastgenre:
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canonical: ''
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Setting this value to the empty string will use a built-in canonicalization
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tree. You can also set it to a path, just like the ``whitelist`` config value,
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to use your own tree.
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.. _YAML: http://www.yaml.org/
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.. _pyyaml: http://pyyaml.org/
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Running Manually
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----------------
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In addition to running automatically on import, the plugin can also run manually
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from the command line. Use the command ``beet lastgenre [QUERY]`` to fetch
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genres for albums matching a certain query.
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