...a mostly light hearted atmosphere with occasional serious moments and even a bit of irony...
It's not the past, but the memory of the past that matters.
American Idiot, a musical with the heart of a rocker and the soul of a balladier.
Maybe rocking musicals started with "Hair" in 1967, but "American Idiot" comes from a real band's CD. It's more in the "Tommy" mold.
If the 'Occupy Movement' really wants a focus, it might try hinting at the possibility of a draft!
A sixties 'long hair' takes on the Bible through the lens of the mood of the times.