I think the issue with music theory is its actually an after thought. A bunch of guidelines to reproduce something that is often first developed by simply plea

I think the issue with music theory is its actually an after thought. A bunch of guidelines to reproduce something that is often first developed by simply pleasing subjective taste. Example: Tonal harmony didn't really lend itself to 'blues' Idom7-IVdom7-Vdom7 but the later jazz harmony was developed to accommodate it.