So, what about those mysterious-looking chord symbols like C7#5#9, C13b5b9, and others? Well, initially they can seem intimidating. However, when you understand upper structures, that all changes. Upper structure triads serve as your “secret keys” to unlocking the mystery behind all those terrific sounding chords. This lesson will have you feeling confident with being able to access them on command. We use a little of Over The Rainbow (Arlen & Harburg) to demonstrate the concept. The content in this lesson will have you wanting to have more and more fun with this approach for weeks and months!