Is it a sarcasm which ridiculed the man is definitely a layman for piano?
That's what I think too. There is definitely sarcasm here but I have no clue who he is talking about. It's like me buying a fancy set of golf clubs and not having a clue how to grip the club, how to position my body, which way to look, etc. As a result I would probably hack up the entire green in front of me, sending divets all over the place. Someone might say:
The woman has a set of real neat clubs and all she does is ploughing the greens with them.