I live in NYC. I would like to learn piano tuning. How do I go about it when there seems to be no classes whatsoever!
Perhaps you will get a much more satisfactory result by enquiring at the Piano Technicians Guild. Here are the details of the NYC Chapter where you will be able to get definitive advice geared specifically to your local situation:
http://www.ptg.org/chapters.php?Chapter=101&Sort=Last
All the best,