Isn't It Time For A Revolution?
A musical revolution, that is ...
Allow me to explain ...
The 50's and 60's gave rise to blues, blues-rock, rock 'n' roll, and psychedelic ... which inspired (somewhat) the hard rock movement (via Cream & Led Zep), and Heavy Metal (via Black Sabbath). They, in turn, inspired arena rock and the whole "classic rock" period in the 70's.
On another front, the motown & R&B fads made more use of synthesized music in the 70's to ultimately create disco. The backlash to disco and arena rock was of course, the punk movement, which led to the New Wave of British Heavy Metal. That in turn, led to thrash & speed metal, as well as glam, and hair metal in the 80's.
The world ultimately threw up against the excesses of glam & hair metal in the 90's by coming up with grunge, and alternative (for a brief period, there was Guns 'N' Roses, but they were but an aberrant blip on this timeline). Rappers found mainstream success with gangsta rap. By weird coincidence, the "diva" movement can be traced to the early-to-mid 90's. Pop culture, feeling a bit left out, came up with bubblegum-slut-pop, in the form of Britney & Christina. That whole morass of styles created and R&B explosion in the 00's, while grunge & alternative inspired a new legion of college, indie, and post-punk rock. Oh, and nu-metal too, I guess.
So basically what I'm trying to say is that in the last 7 or 8 years, there hasn't been (to my mind), a paradigm shift in musical innovation, as seen in previous decades. To quote a frog & a dog, "I hope that something better comes along" ... cos I'm bored!
And no, I have no interest in jazz. I equate it to somewhat better than elevator muzak.