Thank you! I enjoyed writing that, even if a couple of years later there are typos that make me cringe, and I'm glad you enjoyed it.

Regarding the quotes:

I first heard the Debussy quote from a music historian named Robert Greenberg, but the quote can be found fairly easily (for instance it's referenced in a New Yorker article on Debussy: https://www.google.com/amp/s/www.newyorker.com/magazine/2018/10/29/the-velvet-revolution-of-claude-debussy/amp)

The Boulez quote is one I can across while researching the history of Rite performances for this essay. The quote is referenced in a few places but here is one: https://classicalvoiceamerica.org/2013/05/24/all_the_rites_of_spring_you_can_hear/