Fine Tuning
I am sitting here listening to an elderly man tune my piano by ear.  When he first arrived, I showed him my low C.  This key is constantly making a 'twangy' sound after it is played, and then sometimes it stops playing abruptly.  I didn't know how to fix it.  Now I do.  He is kind enough to show me all sorts of tricks, and I feel confident that if I had the tools, I could tune a piano by ear.  I love learning new things, especially things that are useful to me.  I pay him 85 Euro per tuning, per year.  I could tune 2 pianos a week and make what I make teaching piano for 12 hours a week.  Anyway, back to that C, it sounds terrible.  When my piano students are playing, it is an obvious error because they tend to pluck the keys.  When I play, I am able to cover it pretty gracefully, but it is a strain on the finely-tuned ears that God has given me.  I always hear it, even when other people don't.   He fixed it first.  He saw my face and knew that I wouldn't leave him u...