Hi! I'm a physics bachelor and amateur oboist. I started a formal education in a conservatory, but I left it a few years ago and I've just been attending oboe classes. A music career is already out of discussion for me, but I'm interested on learning on my own the most "theoretical" side of music (that is, everything they teach you at conservatories apart from how to play). However, I have no idea on how to start. Could any musician here recommend me any books on harmony, analysis, composition, music history and anything else you think would be necessary? I understand a physics forum may not be the best place for this kind of question, but I guess you guys have a mindset and a background that resemble mine, so that your suggestion will be useful. Thanks.