Where can I set a genre for a mbid?

I did an edit for mbid 4a3754d4-2588-4737-9574-8ffb81f0af82 (I added a discid; I own this CD). Now I notice that there’s no genre associated with it. I have probably asked this before: how do I set a genre for a mbid?

When you display the release, click the “Tags” tab. You can enter your genre information there. This is (sort of) explained on the genres page in the documentation.