Thanks for your observations as well, I agree with most of what you say. It also reminded me of a book written by Dutch composer Louis Andriessen about Stravinsky. He explains why he believes that in Stravinsky, the most important note is always the ’wrong’ note. This was Stravinsky’s way of escaping the straight jacket of the diatonic rulebook. Thelonious Monk of course did the same in jazz and there are many other examples, including Zappa.
Come to think of it this device goes back at least as far as Bach. How about that one ’wrong’ chord in the closing chorale of the St. Matthew Passion? It is as if the weight of the whole drama crushes in on that single chord. Something similar happens in the closing bars of Stravinsky’s Requiem Canticles. The emotional impact of such notes or chords is devastating and worlds apart from the kind of sonic effects Strauss used in his tone poems. I can’t think of a better way to illustrate the ’problem’ that I have with much of his music. I’m afraid Klemperer was right.....