I'd suggest you go back through some of my Fundamentals videos that address some of the things you may be able to notice about your son's playing.

In what ways have you gotten out ahead of him?

Look at my videos on those topics, and pay attention to the TEACHING in the videos.

Whether it is chord tone, or chord changes, or strumming or.....:

* What am I suggesting you make sure and do?

* What am I suggesting you make sure and avoid?

* What am I suggesting you double check on?

See if you can observe your son's playing and determine what little details he would need to pull together to improve his sound.

Become his Dad-Coach! Teach him the details, and that empowers him with a 'detective' mindset, to hunt down the culprits for poor sound, and to erradicate them!

It becomes like a treasure hunt - not the drudgery of 'practice'.

-Lisa