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The Boardwalk Hall Auditorium Organ is the pipe organ in the Main Auditorium of the Boardwalk Hall (formerly known as the Atlantic City Convention Hall) in Atlantic City, New Jersey, built by the Midmer-Losh Organ Company. It is the largest organ in the world, as measured by the number of pipes (officially 33,112, but the exact number is unknown).〔 The main auditorium is with a floor area of , giving a volume of . Consequently, the organ runs on much higher wind pressures than most organs in order to achieve a volume loud enough to fill the hall. The organ has four entries in ''Guinness World Records''. including "Largest pipe organ ever constructed", "Largest musical instrument ever constructed" and "Loudest musical instrument ever constructed", and holds several records in the organ world. It is one of only two organs in the world to have an open 64-foot rank,〔 and the only organ to have stops voiced on 100 inches of wind pressure (~ 3.6 psi).〔 Its console features seven keyboards, called manuals.〔("World's Largest Organ Has Seven Manuals' ) ''Popular Mechanics'', March 1933〕 ==Construction and layout== Construction of the organ took place between May 1929 and December 1932. The organ was designed by state senator Emerson Lewis Richards and was built by the Midmer-Losh Organ Company of Merrick, New York. Most of the pipes were built by Midmer-Losh. Anton Gottfried made some of the reed pipes, including the Brass Trumpet, Egyptian Horn, Euphone and Musette Mirabilis. The German firm Welte-Mignon provided the Bassoon with papier-mâché resonators〔 〕 and wooden Tuba d'Amour for the Echo division. The organ is built around the Main Auditorium of the Boardwalk Hall. The organs divisions are divided across 8 organ chambers, as follows: The current layout of the organ was Emerson Richards' third design. The first design was to house 43,000 pipes in six chambers (all mentioned above without the two Forward chambers), but the quoted cost greatly exceeded the allocated $300,000,〔 and there wasn't enough space to house all the pipes. The numbers of pipes was then reduced to 29,000. Later, when the Forward Chambers were also used, some stops from the original plan were reinstated, raising the numbers of pipes to the present official number of 33,114 (see also below). The contract price was $347,200.〔 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「Boardwalk Hall Auditorium Organ」の詳細全文を読む スポンサード リンク
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