I can vouch for the tutorial series from Eli Fieldsteel[0] for getting into SuperCollider and audio synthesis in general. If you were ever curious on how to bridge the gap between signal processing and music theory through mathematical operations, I think this is one of the best series out there.

[0]: https://www.youtube.com/watch?v=yRzsOOiJ_p4&list=PLPYzvS8A_r...