---------- > From: Don <drose@dlcwest.com> > To: pianotech@ptg.org > Subject: Stability > Date: Saturday, April 11, 1998 9:59 PM > > Hi all, > > We have many variables to deal with. The some of the areas of concern are: > Tighten Plate Screws. Until then none of the conditions below apply...... and that might not solve it. (ill fitted pin block ) (See Susan Kline"s "World Class Junk" Piano Technician's Journal) (Also using warped plates, Try to prove that one) I guess that comes under "Quality of instrument" mentioned below..rm > Size of instrument > Quality of Instrument > Age of instrument > Philosophy of scale design > tightness of tuning pins > friction of rendering points > hardness of hammers > playing conditions > lighting > heating systems > air conditioning > humidity control > barometric pressure (which affects the partial pressure of water vapour) > previous work > > Many of the above are beyond our control. We have to work with real pianos > in a real world situation. > > I would invite people to comment about the relative importance of these > factors. Please feel free to add to the list. > > > > Regards, Don
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