Reddit refers to this "1968 video of Maestro Boulez conducting a bit of the second movement of Debussy's "Nocturnes".
I know that Boulez 'pretty much hated everyone apart from maybe Webern, Birtwistle, and a few others. I quote more of his scorn.
He accused Schoenberg, after his death, of the “most ostentatious and obsolete romanticism.” Webern was “too simple.” Berg suffered from “bad taste,” Ravel from “affectation.” Twelve-tone music in its extant form was overrun by “number-fanatics” who engaged in “frenetic arithmetic masturbation.” Boulez’s teacher, Olivier Messiaen, produced “brothel music.” John Cage, who was at one time an ally of Boulez, became a “performing monkey,” and Karlheinz Stockhausen, likewise, a “hippie.” The American minimalists displayed a “supermarket aesthetic,” the American serialists had a “cashier’s point of view.” Brahms was a “bore,” Tchaikovsky “abominable,” Verdi “stupid, stupid, stupid!” And so on.
...
"Well, Shostakovich plays with clichés most of the time, I find. It's like olive oil, when you have a second and even third pressing, and I think of Shostakovich as the second, or even third, pressing of Mahler."
Incidentally, between this and The Rest Is Noise, I'm pretty sure Pierre Boulez ran over Alex Ross's dog or something.
