This is fantastic, Brian. When I read this post, I had a chill of inspiration. I have more to say about this whole subject. I’ll talk about it in the next RGS Live using your “question” as a jumping point.
This is great Brian. I didn’t quite understand your use of the word “intervals”? Is this in place of the word “step”? I use this term in this way: 1 step=2 frets. 1/2 step is one fret. A major 3rd interval is 2 steps. A minor 3rd is 1 1/2 steps. And so on.