When using iTunes Radio, when you add a new station by searching through the genres, you get 10 second previews of songs played back-to-back to give you an idea of what the station will be like. The artist and song appear below the station name and the previews run until you stop them. Go to Add Station and tap once on a genre. The quick previews will begin, giving you the option to add the station or end the preview, as shown.
I haven't seen this covered yet. Pretty cool!
Nice, I think that's pretty neat. I don't really use other music streaming services so others offer this.