morgancurrie/marcato_festival_wordpress_plugin — pull request #2 by gavinsmith (2012-05-17 19:27:22+00:00)
Title: Parsing the 'Genre' field for artists into a taxonomy, marcato_genres.

Really helps filtering artists by genres, in this case. There probably a couple more places where data could be stored in a taxonomy instead of meta fields, especially where relatively complex querying by those values is involved.