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A music box or musical box is an automatic musical instrument that produces sounds by the use of a set of pins placed on a revolving cylinder or disc so as to pluck the tuned teeth (or ''lamellae'') of a steel comb. They were developed from musical snuff boxes of the 18th century and called ''carillons à musique''. Some of the more complex boxes also have a tiny drum and/or small bells, in addition to the metal comb. ==History== The original snuff boxes were tiny containers which could fit into a gentleman's waistcoat pocket. The music boxes could have any size from that of a hat box to a large piece of furniture, but most were tabletop specimens. They were usually powered by clockwork and originally produced by artisan watchmakers. For most of the 19th century, the bulk of music box production was concentrated in Switzerland, building upon a strong watchmaking tradition. The first music box factory was opened there in 1815 by Jérémie Recordon and Samuel Junod. There were also a few manufacturers in Bohemia and Germany. By the end of the 19th century, some of the European makers had opened factories in the United States. The cylinders were normally made of metal and powered by a spring. In some of the costlier models, the cylinders could be removed to change melodies, thanks to an invention by Paillard in 1862, which was perfected by Metert of Geneva in 1879. In some exceptional models, there were four springs, to provide continuous play for up to three hours. The very first boxes at the end of the 18th century made use of metal disks. The switchover to cylinders seems to have been complete after the Napoleonic wars. In the last decades of the 19th century, however, mass-produced models such as the ''Polyphon'' and others all made use of interchangeable metal disks instead of cylinders. The cylinder-based machines rapidly became a minority. The term "music box" is also applied to clockwork devices where a removable metal disk or cylinder was used only in a "programming" function without producing the sounds directly by means of pins and a comb. Instead, the cylinder (or disk) worked by actuating bellows and levers which fed and opened pneumatic valves which activated a modified wind instrument or plucked the chords on a modified string instrument. Some devices could do both at the same time and were often combinations of player pianos and music boxes, such as the Orchestrion. There were many variations of large music machines, usually built for the affluent of the pre-phonograph 19th century. Some were called the Symphonium, others were called the Concert Regina Music Box machine. Both variations were as tall as a grandfather clock and both used interchangeable large disks to play different sets of tunes. Both were spring-wound and driven and both had a bell-like sound. The machines were often made in England, Italy, and the US, with additional disks made in Switzerland, Austria, and Prussia. Early "juke-box" pay versions of them existed in public places also. Marsh's free Museum and curio shop in Long Beach, Washington (US) has several still-working versions of them on public display. The Musical Museum, Brentford, London has a number of machines.〔(musicalmuseum.co.uk )〕 The Morris Museum in Morristown, NJ, USA has a notable collection, including interactive exhibits. In addition to video and audio footage of each piece, the actual instruments are demonstrated for the public daily on a rotational basis.〔(morrismuseum.org )〕 At the end of the 19th century and the beginning of the 20th, most music boxes were gradually replaced by player pianos, which were louder and more versatile and melodious, when kept tuned, and by the smaller gramophones which had the advantage of playing back voices. Escalating labour costs increased the price and further reduced volume. Now modern automation is helping bring music box prices back down. Collectors prize surviving music boxes from the 19th century and the early 20th century as well as new music boxes being made today in several countries (see "Evolving Box Production", below). The cheap, small windup music box movements (including the cylinder and comb and the spring) to add a bit of music to mass-produced jewellry boxes and novelty items are now produced in countries with low labour costs. Many kinds of music box movements are available to the home craft person, locally or through online retailers. 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「music box」の詳細全文を読む スポンサード リンク
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