/diy/ - Do It Yourself

I'm gonna ask in here and /mcg/
I'm reading through the book "Musical Applications of Microprocessors" by Chamberlin. It's effectively a textbook for mixed-signal audio synthesizer design, and also full-digital (almost-)register-level programming of microcontrollers as synthesizers. It's got a shitload of applicable information to what I want to do, but it's also from 1985. Needless to say, it's a bit outdated. I don't know if I can program my stm32 blackpill in BASIC. I like this one because it tells me how to implement synths digitally without relying on libraries. More recent books of a similar caliber are all a bit of a sham. They say "learn how to make digital audio synths!" and then you open the book and it says "download this audio synth library!"
Do any of you guys know of similar textbooks that are more recent?