The biggest obstacle to coming to a reasonable conclusion in all of this is that there is no CONSENSUS as to the scope of the phrase CLASSICAL MUSIC .I’m simply making a point. A few posters have rejected film music as CM and made it sound like it’s a no-brainer that avante-garde is. You have indicated how these decisions are made and clarified it more to my liking above. It’s interesting to me that a few here read my position as trying to eliminate avante-garde. No, I’m questioning why it gets to stay and film music has to go. (And again, I’m not all that invested in this. I decided to respond when a poster early on, without equivocation, totally rejected film music.)
Of course, it all overlaps. Classical, avant-garde, experimental, pop, rock.
Is ELEANOR RIGBY "classical". It's a string quartet with solo voice and vocal ensemble.
Is Albrechtsberger Concertos for Jew's Harp, Mandora and Strings "classical"? Is the Jew's Harp a "Classical" instrument?