This is a plug-in that will allow you to define exactly what genres should appear in your metadata.  You can define which ones are allowed and which ones are mapped (or turned into) one of the allowed ones.   So, if you have genres like "Country" "Alternative Country" and "General Country" and you just wanted them all to be "Country" you can make that happen.  Anything not defined as allowed or mapped to an allowed one is discarded from your metadata.   The workflow for configuration is as f