Agreed, Pandora can get a bit one dimensional if you're not diligent. I've heard it's best to upvote sparingly and downvote heavily if you want a good mix. Also

Agreed, Pandora can get a bit one dimensional if you're not diligent. I've heard it's best to upvote sparingly and downvote heavily if you want a good mix. Also adding multiple bands and/or songs to a channel helps.