Can anyone explain what makes a "classic rock" format station play a certain group or song? I know they probably have test audiences and make determinations from their responses, but assuming that were true, let's just take a test example with 2 vaguely similar songs (vaguely, mainly because of the flute and hard guitar): Locomotive Breath (Jethro Tull) vs Evil by Legs Diamond: Are the people they test really going to choose "Locomotive Breath" over the Legs Diamond song? Both are really catchy and I'd even say the Legs Diamond is more "immediate" in impact. Is it something else entirely for that format? Is it corporations pushing whatever catalog they want to sell? Biggest sellers or just well known stuff in general? Are their listeners really that fickle? What's the story? I've been looking through Google with not that many answers.