Beets plugin to retrieve the country of an artist from Musicbrainz
To install, use pip
$> pip install beets-artistcountry
To activate it, add artistcountry to the list of you plugins in your configuration file (config.yaml)
plugins: [...] artistcountry [...]
You can now use the template field artist_country to build your path in your audio library. Here is an example to do this in your configuration file
paths: defaults: $albumartist ($artist_country)/[$year] $album%aunique{}/$track $title
Now the path for a track looks like
Metallica (us)/[1984] Ride The Lightning/04 Fade To Black.mp3