Culturally, I think it’s a big problem that copyright terms are not less than 28 years, let alone how absurdly prolonged they’ve become. After 28 years, if your music hasn’t been recapitulated by the next generation of artist, it’s pretty much lost to nostalgia or historical artifact.
The Stone might still rock today, but no one is *rocked* by their music today the way we (as kids) were when it was new. No one is legally allowed keep making sure that people are *rocked* by the Stones, and so now it’s hard to get more out of their music than a last millennium nostalgia trip.
And, shit, is Elvis gone? When I was a kid, the adults I knew were still totally blown away by him. Now? No one remembers what it felt like well enough to pass it on. . .