I think the music has shifted away more from rock and roll since its from an older generation at this point, at least for classic rock bands. I say this because I knew of a ministerial servant who liked rock and played in a rock band when he was younger JW. An elders son is into classic rock and the heavier stuff. Once a heavy screamo type song popped up by accident at a party when music was being played out of his iPod (oops). His dad (the elder) liked classic rock. But there is still a sting on it. One Sunday talk mentioned alternative rock and how it's too heavy to listen to and so on. Except "alternative rock" is a really vague genre, could range from soft indie rock to heavy grunge. Growing up, I was told to be careful by my parents but I like listening to classic rock.
Nowadays it's probably more like rap or pop music. There's a lot of suggestive and explicit lyrics there, more direct than in classic rock.