anything since the terrifyingly abstract high modernism of the 60s...
like Boulez or Birtwistle or Ferneyhough or Lachenmann or Czernowin or Furrer or?
the return back to tonality
Ah. Like electroacoustics and turntablism and music theatre like Heiner Goebbels and Miguel Azguime and The Spy Collective and Kagel and Diamanda Galas. Like Simon Steen-Andersen and laptop music and noise music and....
The world of music is much richer and more various than "terrifyingly abstract (?) modernism of the 60s" and "the (?) return back to tonality." In the sixties, for instance, there was tape music and experimental* music and Fluxus (and other happenings) and minimalism (of all varieties) and live electronics (like from the Sonic Arts Union and from John Cage). Concept music, danger music, mixed media and multi-media.
In short, the sixties alone were more rich and more various than "terrifyingly abstract modernism." (I can't help asking, terrifying to whom? Always in these discussions, the reaction of some person or persons unknown is privileged over all other persons, creating a fake monolith of hideous music over here and another equally fake monolith of horrified listeners over there, locked in a life or death struggle! And that grotesquely over-simplified and inaccurate picture of reality is then substituted for what actually happened. And while all history is over-simplified and inaccurate, there are degrees! And recollecting the very recent past should really be easier to do more accurately and completely, hein? Why, some of us can recollect the sixties our own selves, man.)
*which word meant something quite different in the sixties and seventies than it has come to mean today.