Phenomenal review, critique, and exploration.
That first throwaway detail on her bio - "spent 5 years studying indigenous music in Eastern Peru" -made me pause, frown. Either that's a fraud, and this woman was escaping something through an invented story - or indigenous music will play a significant role in the story. I hadn't realized that I was already starting modernist hermeneutics.
Blanchett offered a truly exceptional performance, and the movie merits such piercing scrutiny as yours. So odd that some might think conducting before cosplayers amounts to a "tragic downfall."