and pretty much nonexistent (until much later) in Boulez
But why, I wonder. What is it with Boulez's electronic history anyway? I can hear the 'influence' of the knee-jerk reverb, filtering, distortion techniques of the 50s and 60s fairly readily in a lot of his orchestral music, but (whatever period we're talking about) not nearly in so markedly a way as in Berio's - or Ligeti's. I wonder if his heart was really in it. A piece like
Repons seems to me only tangentially beholden to the fledgling digital techniques that inspired it, whereas Berio's
Offanim, for instance, seems absolutely and ultimately dependent on them for its very existence.