There is so much that we as technicians don't know about the piano, that to have such a narrow view of what pianists can and cannot control, is to not only ignore the evidence that Bob and Horace have pointed out, but also ignores the fact that we don't really know all the dynamics that go into piano tone. A good place to start would be to read the "Five Lectures on the Acoustics of the Piano" that can be had from Steinway, especially the article by Askenfelt and Jansson titled "From Touch to String Vibration", another one of those "must read" piano books. Vince Mrykalo BYU
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