> We could go back and fix it, but that would require a grand unified theory of harmony, something which hasn't quite emerged, although we've made some big step

> We could go back and fix it, but that would require a grand unified theory of harmony, something which hasn't quite emerged, although we've made some big steps on the past decade. I'm intrigued, got any more info or links on what sort of big steps have been made in the past decade?