That smile at the end of the video just says worlds . . . he was proud of himself, and should have been. As he grows in self-confidence he'll gain the FEEL of the music as well as the strict placement of notes. I'd be thrilled if I could get my kids or grandkids involved in music. Right now, all they know or care about music is how to find the "power" button!
Today it is really difficult to motivate kids to do something more than playing gadgets.
In our case we try to involve our kids into music with help of gadgets and technology. As example, my son makes video by himself in proffessional video making program, learn english in the internet, improve his guitar skills trough the software like Yousician, etc. It is really interesting experience for us