How do you browse music for the radio.

In iTunes I want to be able to browse for music for streaming much like I can in the store. I do not want playlists from "exports" I d not want Apple guessing what I may like. I want to browse the entire library and pick. I don't see any easy way of doing that.

At the moment I browse the store and to find something interesting the go to new and search for that artist in order to play over the radio.

There has to be an easier way that I am missing.