> > ...or can we focus on increasing efficiency. If energy loss due to key > > bend is significant, increasing key stiffness could result in faster > > hammer velocity, the pianist might not need to strike the key as hard > > as before to get the same velocity. > >This is one of the simplest ways. Sometimes the only way. The example given >in the Journal articles was of a piano having keys so flexible they were >seriously limiting the range and power of the instrument. Del, You knew this was coming, so I won't make you wait any longer. Do you have any rough rule of thumb go - no go diagnostic criteria for deciding when keys are too flexible during teardown? Ron N
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