That's why the format is struggling in radio, and why stations like KFOG are giving up. But at the same time, you have Rock 100 in Atlanta shifting to a younger presentation. My question there is will the younger audiences come back to a traditional platform when they can get exactly what they want digitally? I don't know the answer there.
You mention the jazz analogy, and what happened there was the music became less commercial. Miles Davis was very different from Benny Goodman. It's not that Miles made bad music, but he wasn't making radio songs. Less commercial means smaller audiences, and a lot of rock today is less commercial. It's the tribalism thing that Seth Godin predicted 10 years ago. Bands are targeting tribes rather than making music for a radio format. It's up to radio programmers to identify the biggest tribes and play the music that'll attract them. That's a real challenge, and then the next question is are the existing formats appropriate for where the music is going. We know that radio formats have adapted and changed as the music has changed, and perhaps that's where things are going. But I agree with your view that the music has to keep changing, and that's why to the boomers who define rock strictly around what they grew up with, rock (as they knew it) is dying.