My dual mono-chord was designed to test just such things. When I did these sorts of comparisons in the piano there were always so many variables it was impossible to tell just which change in scaling or structure was making any given change in tone. Even if the only change being made was the wire sizes of one note this doesn't tell you what happens if you change the wire sizes through the whole section. The dual mono-chord is set up so I can change just one thing--such as the wire size of just one of two otherwise identical setups--and leave everything else the same. Done this way the difference in timbre between two unisons using different wire sizes--hence different amounts of stiffness and tension--but still using identical soundboard assemblies, identical string lengths, backscales, bearing, etc., becomes obvious. ddf Delwin D Fandrich Piano Design & Fabrication 6939 Foothill Court SW, Olympia, Washington 98512 USA Phone 360.515.0119 Cell 360.388.6525 del at fandrichpiano.com ddfandrich at gmail.com -----Original Message----- From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Joseph Garrett Sent: Tuesday, September 27, 2011 12:04 AM To: pianotech Subject: Re: [pianotech] Piano scales Del's comments are greatfully accepted.<G> After all, he's the one that got me so into that stuff. It's good to know that "Scale Ripper" is a valid program. Theres' so much new stuff out there, it's hard to keep up with it. As far as the "poppycock" thang, that's your assessment with your experiments Since I have not had the opportunity to do as much of that good ol' R&D, I've had to rely on some small indiviidual cases. That is how I came to those conclusions. I'll bow to your greater knowledge in that case. i.e.....back to the drawing board a bit. I do suspect that given your other skills of designing soundboards and the rest of the sonic structure, you've had greater variables to work with. On that account, I'm completely out to lunch, as you already know.<G> (With one exception, the only boards I've ever done were those designed and made by Del<G>) The previous comments by D. Love, (I hope I'm quoting the right guy this time.<G>), really said it all as to the whys and hows. Said much better than I was able to. Joe Joe Garrett, R.P.T. Captain of the Tool Police Squares R I
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