Woohoo! And hopefully it will give him a sense of accomplishment. How old is he? Been there done that, the ADHD, for a while with a step-nephew.
Getting through to him with music may open the door to other things, at least around you...like manners. d:o)
I think he is 9 or 10. He is smart, no doubt about it, but I have never seen such a hyper kid in all my years of teaching.