This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Delwin D Fandrich wrote:=20 =20 All pianos have both front and rear duplexes. The question is = how long they are, what the string deflection angle is (at the front), = and whether or not they are tuned. Del Isnt this a rather.... wide definition of a duplex Del ? I mean = when the get to the point of being 3-5 mm long and muted at that it = seems a bit of a stretch to call the thing a duplex.... or what ?=20 --=20 What would you prefer to call it? Duplex simply means 'consisting = of two parts.' Beyond that we really have to get more specific. If we = are going to go to the trouble of tuning the duplex surely it's not too = difficult to say so. And we have a perfectly good word we can use: = aliquot, meaning, "to divide something exactly." Or we can say the = duplex is "an aliquot part" of the speaking length meaning the duplex is = divided into some fractional part of the speaking length.=20 Del Why not call these lengths what they really are in our context...in = the most general sense they are simply non speaking lengths.=20 Ok. They are all duplex lengths that are non-speaking. At least the = way I design and build (rebuild too, for that) pianos, they are = non-speaking. If they are tuned duplex string segments -- i.e., aliquot = string segments -- they are most often speaking lengths to one degree or = another. In more specific sense they are front and back duplex lengths which = may or may not be at the same time an aliquot part. Correct me if I am = wrong but doenst the aliquot part infer whole number fractional parts... = like 1/3, 1/4 etc... not 0.25643 or the like ???=20 Right. As I said, "...we can say the duplex is 'an aliquot part' of = the speaking length meaning the duplex is divided into some fractional = part of the speaking length.' I.e., it is tuned to some fractional part = of the fundamental.=20 The word duplex as applied to the string segment between the = V-bar/agraffe does not imply that it is a specifically tuned string = segment. Unless, of course, its length is identical to the speaking = length.=20 I have for years called these string segments duplex string segments = regardless of their length--it's how I was taught and it's how many = others in my circle of acquaintances have referred to them. It seems a = good convention to follow. When they are tuned it is easily stated and = the word 'aliquot,' or and 'aliquot part,' is quite useful. You are, of = course, free to call them whatever you'd like.=20 Del ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/dc/2c/3c/9e/attachment.htm ---------------------- multipart/alternative attachment--
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