A cursory A/B of the two pieces here that were recorded earlier on Columbia suggest an even higher level of command, which should not be conflated with "ease". There is nothing "easy" about this music. But in turn, that should not be conflated with "difficult to listen to". There's an inmate logic to all of this music that is just ..there. And resistance just obscures it more, the resistance to the logic is what obscures the music. It's not a problem with the music!
I've always dug Berg, but I used to HATE Webern. No more. His music now seems like a delightful riddle that maybe is infinitely solvable. And the JSQ plays the hell out of it! These works in particular display just damn many textures they were capable of creating. A wonderful thing in and of itself!
So yeah, this is another damn good record.
But it doesn't cancel the Columbia!
Performances aside, the older record has a bit of a "thicker" sound, the RCA Living Stereo is crystal clear. So the one is like a hard rock mass coming straight at you and the other is like a dancing set of light beams.