How to Bore Grand Hammers to Custom Match String Heights

A question left in reference to one of my videos on hanging grand hammers finally receives a response after 2 years languishing unseen on YouTube. Come on, Chris... Q. With an uneven string height, did you then change the bore distance incrementally as you drilled the hammers?   A. An important question. String heights are often not parallel t...
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Imperfect Agrafffes and Best String-to-Hammer Mating

The experienced regulator/voicer has filing skills, regulating chops, voicing tricks, and an array of solutions to apply in response to constraints of piano, time, budget, and the vicissitudes of by-eye referencing. Even for them, variables represent challenges and simpler is better. For the rest of us, simpler is way better.

So. My tools or yours, travel and square hammers to vertical, position the action in the piano for best tone, and level strings to hammers in the piano. This needs to be coordinated with settling the wire throughout its lengths to finish with the fit at pitch and the piano in tune.

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