Did you know that you can choose which genres you're interested in on your account? It's easy to do in just a few clicks.
First, click your username at the top of the screen, then Profile. On your profile page, head to the tab that says "My genres."
On that page, you'll be able to select all of the genres that you're most interested in. Selecting genres will not limit your account in any way and you can update your list at any time.