---------------------- multipart/alternative attachment Okay, so I set up a spreadsheet in which I started arbitrarily with a 52mm note 88, took the natural log (Ln), added an increment, used the EXP function to return the length of the next note, repeated it down to note 21, and graphed it all to show a picture of the long bridge shape. I dinked around with increments by trial and error until I found one, 0.0528, that gave me a note 40 that was very close to that of a Stnwy B, and overlaid that shape on the graph of a B bridge. I also overlaid speaking length scales from several other pianos onto the same graph, and they all were surprisingly close to the same shape, except where you would expect them to diverge in the low tenor, around note 28 or thereabouts. My question is, so what? What does this mean? Why would I choose a different increment? I guess with a higher increment the scale would be longer as it went down, higher tension, lower inharmonicity or louder (depending upon wire size), but would "run out of case" sooner, or have to be compromised earlier with wound strings, third bridge, etc. Might this heavier scale be expected to have a slightly shorter sustain, all other things being equal? Thanks, Bob Davis ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/86/10/a3/75/attachment.htm ---------------------- multipart/alternative attachment--
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