> > Ron N... > > You have it backwards. Wapin, we believe, reflects the initial struck > displacement of the string into a plane that is 90 degrees to that struck > direction. If the piano is a grand piano, then Wapin, pushes most of that > vertical displacement to a horizontal displacement. The string does take on > an elliptical motion in both Wapin and nonWapin pianos. The difference with > Wapin is that the major semi-axis of this elliptical motion is in a direction > that is 90 degrees different from the struck direction. > > The Weinreich model described is the accepted paradigm. It is a theoretical > model which can only be derived by inference. In reality the real model is > much more complex. > > ------------------- > Michael Wathen, Wapin. LLP Aha, thank you Michael. That steers more of the indicators in the same direction. This is why I didn't trust my memory. It makes more sense this way. Ron N
This PTG archive page provided courtesy of Moy Piano Service, LLC