The tone regulator pierces the outer felt with needles to make the hammer more resilient, which also changes the sound. It's like hitting a drum with a soft padded stick instead of a hard stick. He has to know just how much shaping and sticking is needed for each and every hammer in order to make the piano sound right. The treble notes should be clear, the bass notes should be full and rich, and the overall sound should blend together. The tone regulator spends about twenty-five hours working on each piano.

The legs of the piano are taken off so the case can be put into a narrow wood box. Then it is crated up and shipped out of the factory.

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