I think the TAC is, so far, an efficient, fun way to learn and stay interested in learning the instrument. I was a woodwind instrument player a long time ago and the learning process was completely different and arduous. This TAC keeps one interested and enthusiastic without getting too much into reading music (but I would add a little bit about reading, just don't make it the main theme). That said, when you are teaching a fundamental scale I would name the key of the scale. The very beginners may or may not pay attention to that but those that have some music knowledge may appreciate. I would also mention or acknowledge the tenderness of the student's fingertips. It's real but about how long will it take to develop callous? All in all it's a great course. I'm going on a cruise soon and won't be able to take lessons and I am actually disappointed about that. That's significant! One last thing. Tony, I can see you have placed a lot of effort in this and I applaud you for that.