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Piano wire, or "music wire", is a specialized type of wire made for use in piano strings. It is made from tempered high-carbon steel, also known as spring steel, which replaced iron as the material starting in 1834. Piano wire has a very high tensile strength to cope with the heavy demands placed upon piano strings; accordingly, piano wire is also used for a number of other purposes, including springs, surgical uses, and in special effects. == History == The oldest record of wire being made for musical instruments is from Augsburg in 1351;〔Dolge (1911, 124)〕 this probably predates the harpsichord and may have been wire for a psaltery. Earlier wire, used in harpsichords, was of brass or iron. Starting around 1800, the piano began to be built ever more ambitiously, with sturdier (eventually, iron) framing and greater string tension. This led to innovations in making tougher piano wire. In 1834, the Webster & Horsfal firm of Birmingham brought out a form of piano wire made from cast steel; according to Dolge it was "so superior to the iron wire that the English firm soon had a monopoly."〔 But a better steel wire was soon created in 1840 by the Viennese firm of Martin Miller,〔 and a period of innovation and intense competition ensued, with rival brands of piano wire being tested against one another at international competitions, leading ultimately to the modern form of piano wire.〔Dolge (1911, 125-126)〕 The technological developments also benefited from demands of consistency from other special wire products like telegraph and barbed wire. Innovative piano makers kept pace with these advances by augmenting metal framing in their instruments and increasing tension of their strings. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Piano wire」の詳細全文を読む スポンサード リンク
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