Genres
User-defined genres
You can add and remove genres via the New and Remove buttons next the genres list. Editing user-defined genres is possible via the Edit button.
The genres added here are available via the drop-down list of the Genre field on the Tag Panel. Note that these genres are not saved to an ID3v1 tag due to the limitations of the tag format.
Show only user-defined genres
If enabled, the drop-down list of the Genre field on the Tag Panel only shows user-defined genres after a restart of Mp3tag.