Nice! Impressive!
I appreciate music but couldn't tell if someone hit a sour note or not. I found that at when my daughter was taking piano lessons at seven. I would say how nice, that sounds good. Once she grew up she told me, she hated when I said that because she thought I was just saying it to make her play - she told me she was making mistakes and in the background there I was saying that sounds nice, blah blah. Then she found out that I really didn't 'heard/know' it.
But when things come naturally how do you understand something that is so obvious to you that another can't hear it. She did give it up, her teacher was unhappy saying she really is a natural but... the piano sits untouched (except for dusting) after all these years. I'm just happy we didn't get an expensive one, however, it was expensive for us at the time. And that's my music story from someone with non musical ear.
I grew from R&R to country to gospel to worship. Favorite worship is Terry Mac Almon.
There isn’t necessarily a contradiction here.
A musician with good instincts will make even his or her mistakes sound good. Fumbles sometimes do happen and recoveries are split second. When the other day I knocked the ginger off of the spice shelf over the sink and then caught it before it plunged in, I knew I hadn’t lost my reflexes yet, at well over 50 years of age.
If the piano is in good shape you might be able to get close to what was paid for it. Not every music appreciating listener cares to become a performer.