Radio station variety

[wsunate-us]

I'm listening to 3 different stations (Collective Soul, Michael Franti, Saint Motel) regularly and have noticed that they repeat the same songs among the half dozen artists.

I joined Spotify because it supposedly has the one of the largest, best sounding libraries. 

Please figure out a way to dive deeper and improve variety in the stations. Im lazy and don't want to create my own albums. Spotify should be able to do that through their awesome algorithms.

Thanks!