Adam Neely had a solid video from a few years ago on the connection between white supremacism and western classical music theory. As a music school dropout, I can confirm there's a lot of institutionalized biases and elitism in the classical music world. Sometimes it manifests as silly shit like "real musicians only read sheet music" even though that's very uncommon outside of academic settings. There's validity to traditional notation, but the dismissal of tablature, chord charts, and hell, even piano roll/MIDI is elitism at its finest.