I like Module music, and I wanted to know how it works. The code still contains all my silly comments, in case anyone wants to try and understand my thought process [I don't recommend this]
Uses Rtaudio as a base, so make sure you have that.
Huge thanks to Saga Musix (https://github.com/sagamusix) and this webpage in particular: https://ftp.modland.com/pub/documents/format_documentation/Protracker%20effects%20(MODFIL12.TXT)%20(.mod).txt