File:1868sievers tav3fig210 1916wolfenden fig5.svg
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editDescription1868sievers tav3fig210 1916wolfenden fig5.svg |
English: Two geometrical methods for determining sounding lengths of piano strings.
From Giacomo Sievers, Il pianoforte; Guida Pratica per Costruttori, Accordatori, Dilettanti e Possessori di Pianoforti Stabilimento Tipografico Ghio, Napoli 1868. p.103-104 (in black in drawing):
From Samuel Wolfenden A Treatise on the Art of Pianoforte Construction Unwin Brothers, London, 1916 (revised edition, 1977) p.25-27 (simplified to show only construction of half octave between 102 and 192.5 located by 51.5° in red, 35:13 in blue): Added to the original drawings is a construction on cd of the mean proportionals of the octaves with enlarged detail showing the difference between Wolfenden's methods. |
Date | 1868, 1916 |
Source | fig.210, plate 3 G. F. Sievers Atlante della Guida Pratica per la Costruzione de' Pianoforti presso Benedetto Pellerano, Napoli 1868 and Fig. 5, Samuel Wolfenden A Treatise on the Art of Pianoforte Construction Unwin Brothers, London, 1916 (revised edition, 1977) p.26 |
Author | Giacomo Sievers, Samuel Wolfenden |
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https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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current | 15:21, 19 December 2010 | ![]() | 750 × 500 (23 KB) | Mireut (talk | contribs) | {{Information |Description={{en|1=Two geometrical methods for determining sounding lengths of piano strings. From Giacomo Sievers, [http://quod.lib.umich.edu/cgi/t/text/text-idx?c=scores;cc=scores;view=toc;idno=1466882.0001.001 Il pianoforte; Guida Prati |
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