The Sydney Opera House Grand Organ is a large pipe organ by Ronald Sharp, located in the concert hall of Sydney Opera House in Sydney, Australia. This article is part of the Pipe Organ Refactor Project. ... Ronald Sharp (b. ... Sydney Opera House and Harbour Bridge The Sydney Opera House in Sydney, New South Wales, Australia, is one of the most distinctive and famous 20th-century buildings, and one of the most famous performing arts venues in the world. ... Sydney Harbour looking south from the vicinity of the Sydney Harbour Bridge towards the CBD skyline; the Opera House is visible in the background on the left. ...

It is in six divisions, five manuals plus pedals, and is the largest tracker action organ ever built, with 131 speaking stops served by 200 ranks of pipes consisting of 10,154 pipes. It is a baroque organ in style, and as such has no swell box. Organ keyboards (manuals) preferably provide continuous control over the amount of valve opening on an organ pipe, so that the further down a key is pressed, the louder is the sound. ... An organ stop can mean either: The control on an organ console that selects a particular sound. ... An organ pipe is one of the tuned resonators that produces the main sound of a pipe organ. ... This article needs to be wikified. ...

The contract for the construction of the organ was awarded in 1969, during the construction of the Opera House, and the organ was completed in 1979, six years after the opening of the building. Since then the electronics have been updated, including a major refit in 2002, but the musical specification is unchanged from that developed by Sharp starting in 1967.

In addition to its mechanical action, the organ can be played remotely by an electronic system, enabling it to be played from a remote console, or a performance or passage can be recorded by a system built into the keyboards and played back by the electronic action. This system is used by visiting organists to select the registration (the combination of stops) that they will use, enabling them to stand in different parts of the hall and hear the results. Its stops are entirely electronically operated and programmed.

External links

• Sydney Opera House Grand Organ specification (PDF, 110KB.)

According to the PDF specification provided, the organ has at least two swell boxes, or enclosed divisions. It appears that one of them may be double-enclosed. Portable Document Format (PDF) is a file format developed by Adobe Systems for representing documents in a manner that is independent of the original application software, hardware, and operating system used to create those documents. ...