Ask HN: How to get started with audio programming?

I have played with OpenAL-soft [0] and libsndfile [1] to make a simple music player. It works fine but I want to learn the deeper concepts behind how computer audio works. I am a CS student and I know C/C++, Python, and high school mathematics. I came across 'The Audio Programming Book' [2] which seems suited for my level. Can you recommend me some more related resources?

[0] https://openal-soft.org/

[1] http://www.mega-nerd.com/libsndfile/

[2] https://mitpress.mit.edu/books/audio-programming-book