Paul McCloud wrote: > John: > I fail to see what this has to do with real-world dynamics. > Since the lead is integral with the keystick, not suspended by a thread, > the inertia is going to be the same no matter how much acceleration is > generated by the pianist's finger. What am I missing? > Paul McCloud > San Diego Paul, I am just trying to visualize how a lead in a key would react to the acceleration of the key during play. A lead in a key assists the depression of the key at lower dynamic levels of play, ppp and pp. It does this because it has a negative acceleration - gravity - pulling on it. Only after the lead is accelerated past the point of falling will its inertia be felt as a resistance to depressing the key. This means that if you install a lead in the key in order to lower the static down weight you assist the player if they are playing at a soft dynamic range (the action feels lighter). When the player increases the level of dynamics beyond pianissimo the lead begins to hinder playing (the action feels heavier). John Hartman RPT John Hartman Pianos [link redacted at request of site owner - Jul 25, 2015] Rebuilding Steinway and Mason & Hamlin Grand Pianos Since 1979 Piano Technicians Journal Journal Illustrator/Contributing Editor [link redacted at request of site owner - Jul 25, 2015]
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