Yes, I've given up pushing things.
Still, A. has made a great progress just after few days. His speed in reacting is increasing each Guess Key School he plays.
For now I have to teach him the flats and sharps on the piano as he's getting to that level each time I let him continue more than 3 minutes. He's got the idea that the flats and sharps are the black keys, but need to know which one of them exactly to continue playing. Otherwise, he avoids to be frustrated and wants to end the game
I'll use LR for teaching him some musical notation things that he encounters either when he's playing or when I'm playing parts of SM software. He's smart and willing enough to learn few of them using LR. I'll also try different methods for this purpose, but not too many, just enough to make it more interesting for him. He's learning faster that I've ever imagined. I never believed, though knew it's possible. Now I see it with my own eyes.
Andrea