Hi Kevin, yes you can say this. But playing things by ear is not so much that we would evaluate per se. So, you could say "Gorge plays things by ear. He goes with the flow and that works for him."

Yes, that is fine. always very handy for a musician to be able to play things by ear. Having the ability to match the sound you hear and then play it on an instrument. For me I have no such skill. But I have many others. Sorry I took so long to reply. I am in Australia and have just woken up. Have fun

It's perfectly correct and natural.

It’s great

Gorge is an odd name, but maybe it's not English. It's natural, assuming that he is a musician.