OMG!!! She's Awful! I wouldn't let that woman anywhere near my kids! LMAO
Here's a suggestion...let your son practice his new Sax at her house!...lol
As for your ears

Well...my oldest daughter played Alto Sax too. Mu hubby made her practice out on our front porch until she got better at it. But you should have heard the neighbors cows every time she was out there!! It was great

Just remember...this too shall pass