[jumpinjeff]

I don’t specifically remember the patterns but I would venture to guess they are related to chord shapes. Take a look at it through that lens and see if it becomes clear. I like the topic: patterns. It is an exercise in fractiles. Patterns of patterns of patterns. It is another way to understand. Keep going and you may get your questions answered along the way. I found Tony to be clever in how questions are raised and then answered. It was motivating tactic for me.