WEIGHING OFF THE GRAND ACTION – Part 3

WEIGHING OFF THE GRAND ACTION – Part 3

(Part 1 "Why Weigh Off" Part 2 "My Strategy") Method and Style: I recommend the pick-and-add method of weighoff. Key balancing weights are used in pairs, upweight on the bottom, pairing weight on top. Add a pair (downweight) to engage the key and note the speed of hammer rise. Pick the pairing weight off and note the speed of hammer return. Choo...
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Grand Regulation: Letoff, Segue, and Drop - Part 1

Grand Regulation: Letoff, Segue, and Drop - Part 1

Music History quiz: What is the single most notable feature in a modern grand action? If we answer “double escapement”, then as piano historians we can high five. But as piano technicians we may be quietly confused. In our training, did we learn how to analyze, trouble-shoot, or regulate double escapement? Well we did, if by double escapement we...
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