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RE: What efect does scale length have on string tension or hardness of playing?
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Richard Jernigan
Posts: 3423
Joined: Jan. 20 2004
From: Austin, Texas USA
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RE: What efect does scale length hav... (in reply to a_arnold)
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I'm reading "Andrés Segovia, Vida y Obra" by Alberto López Poveda. It is a detailed and highly documented biography, published by the University of Jaén. López freely admits being a trusted friend of Segovia, and the two volume work is quite admiring of its subject. The account of Segovia's birth in Linares, to his married mother and father, and his subsequent baptism in Jaén is well documented. López reproduces both the February 24, 1893 entry in the civil registry of Linares, recording Segovia's birth on the 21st of February, 1893, the legitimate offspring of his parents and grandparents, and the baptismal certificate in Jaén on the 27th of March. Segovia lived with his parents in Jaén for two years. In 1895 Segovia's parents separated. This was when he came under his uncle's care in Villalcarillo, at the age of two. He lived there with his aunt and uncle until 1903. After a brief stay in Manzanares, the family moved to Granada. Angelo Gilardino, a distinguished composer, player, and professor, who edited Segovia's musical archives--and by no means an unconditional admirer of Segovia--once said, "If it would take a thousand pages to write an artistic biography of this man, it would take ten thousand to extinguish all the legends that have grown up around him." RNJ
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REPORT THIS POST AS INAPPROPRIATE |
Date Dec. 21 2010 22:06:17
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rojarosguitar
Posts: 243
Joined: Dec. 8 2010
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RE: What efect does scale length hav... (in reply to XXX)
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Hello, that the tension rises with the scale length is quite obvious: this is the same principle as the one standing behind having frets on the guitar: given same tension the string needs to be shorter for higher pitch. You have to rise the tension, if you go a fret back but still want to have same pitch (say you want to have G on the F# fret). Now you can reverse that: given the same pitch but longer string length, the tension needs to be higher ... The nonlinear formula (there is a square root involved) for the relationship between tension and pitch and scale length is quite straight forward physics; but it rests on one assumption that is only true for a certain range of string tension: it's the assumption, that the physical properties of the material stay same independently of the tension applied. This quite true for materials far from the breaking limit, unfortunately guitar strings operate quite close to (though not quite at) the breaking limit (as many of us have experienced painfully by being hit by a breaking string). So the real relationship between tension, scale length and pitch is probabely quite wild compared to the simpler textbook formula, but the latter is stiil good enough for at least estimating the necessary tension for a given pitch and scale length. best wishes Robert PS My experience is that you do feel the difference between different scale lengths; but that depends on many factors. - how well the action is adjusted - neck shape - the limits of your own hand - thy type of fine motorics you have (some people are better at minute movements, some prefer gross movements of the fingers) - string tension. Soundwise one can expect a slight shift towards the bass strength. Recently I had the chance to compare three guitars that were all very well made: An old Miguel Rodriguez with 670 scale (!), a Sebstian Stenzel 640 Scale and my own Baarslag with 650 scale. I was surprized that the Rodriguez was quite easy to play for me, but it was definitely strange feeling. The Rodriguez had a huge bass but slightly weaker trebles - which of course can have many reasons. The Stenzel has a wonderful sound, and I even consider to buy it, but the scale length feels too short, kind of a bit crowded, for me. You really need to have these experiences, it's quite difficult to say what happens just on the basis of thinking.
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REPORT THIS POST AS INAPPROPRIATE |
Date Dec. 24 2010 10:03:21
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