I think you're misreading Levine at least a little. In C major he doesn't imply that you should play the III chord as Esus b9... I read it as saying that you should consider trying E dorian if you play a fully extended Em13, or maybe try E minor (for Em9) or just leaving the C major scale as is (if you're playing Em7).jancivil wrote:Actually Levine's notions rather illustrate 'theory' which was an observation (through a faulty lens here, if it s'posed to be 'After Russell') which is supposed to be prescriptive. And we get shite like E Phrygian = Esusb9 (in C Major o' course). Modal Harmony reinvents a wheel that don't roll.
The way I've read Levine's part about the Esus b9 was that it was simply suggestion for when you want to have the color of E phrygian in the form of a chord... then you can break out that chord and get the phrygian color (in addition to presumably playing a melody in E phrygian over it).