There is so much wrong with that article I don't know where to begin ...well, wait, I'll begin near the beginning: In the second paragraph the author states "Today’s jazz theory is rooted in chord/scale unity from George Russell’s Lydian Chromatic Concept." No it isn't! Completely and patently untrue. It's specifically the departure from the way jazz theory was -- and still is -- taught that makes Russell's chord/scale unity such a foreign idea...so foreign in fact that the author never once uses any of the vocabulary that Russell developed for his theory, with the exception of that one word "unity" The author is correct when he states "The status quo of jazz education applies chord/scale theory to all jazz repertoire" ...it's just not George Russell's chord/scale theory that's being applied! FWIW: Berklee College of Music, Manhattan School of Music, Mills College, Julliard, Wesleyan, North Texas State (or whatever they call themselves now), none of those learning institutions teach jazz theory as per George Russell's Concept. The New England Conservatory only offers it as an adjunct in their Jazz Studies Department; you are required to take at least one semester of Traditional Jazz Harmony in order to balance the (comparatively radical) ideas of Russell's Lydian Chromatic Concept.