How do I add a new genre to the list in iTunes?

I want to add a new genre to my iTunes library. I’ve noticed that it has trouble classifying pipe music: some CDs are “World”, some are “Folk”, and some are “Unclassifiable.”

Is there a way to edit the Genre list to add a new one?

When you change the info to one song to edit the genre, I believe it adds the genre of said song to the list. Try this out.

That did it - thanks!