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The Sydney Opera House Grand Organ is the world's largest mechanical tracker-action pipe organ. It is located in the concert hall of Sydney Opera House in Sydney, Australia, and was designed by Ronald Sharp, who was assisted by Mark Fisher, Myk Fairhurst and Raymond Bridge.
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 10,244 pipes. It is a neo-baroque organ in style.
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 April 1994 the Sydney Opera House Trust awarded the contract for ongoing maintenance of the organ to Mark Fisher, one of the original staff of Ronald Sharp.
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.
Specifications
Speaking stops
I - Rückpositiv
Prinzipal
8'
Piffaro
8'
Gedackt
8'
Quintadena
8'
Oktav
4'
Nachthorn
4'
Rohrflöte
4'
Nasat
2.2/3'
Oktav
2'
Spitzflöte
2'
Terz
1.3/5'
Quint
1.1/3'
Sifflöte
1.1/3'
Oktav
1'
Quint
2/3'
Oktav
1/2'
Quint
1/3'
Oktav
1/4'
Quint
1/6'
Oktav
1/8'
Sesquialtera
II
Ophicleide
16'
Rankett
16'
Ophicleide
8'
Trompete
8'
Dulzian
8'
Glocken
1'
Tremulant
II - Hauptwerk
Prinzipal
16'
Gedackt
16'
Oktav
8'
Gamba
8'
Querflöte
8'
Holzflöte
8'
Rohrflöte
8'
Quint
5.1/3'
Grossnasat
5.1/3'
Oktav
4'
Gamba
4'
Spitzflöte
4'
Grossterz
3.1/5'
Quint
2.2/3'
Nasat
2.2/3'
Oktav
2'
Hohlflöte
2'
Terz
1.3/5'
Piffaro
IV-VI
Terzian
II
Kornett Mixtur
VI
Mixtur
VI
Scharff
V
Zimbel
IV
Kornett
VI
Trompete
16'
Trompete
8'
Trompete
4'
Glocken
2'
Tremulant
III - Oberwerk
Holzprinzipal
16'
Quintatön
16'
Prinzipal
8'
Salizional
8'
Schwebung
8'
Spillflöte
8'
Oktav
4'
Salizional
4'
Waldflöte
4'
Querflöte
2'
Rauschpfeife
II
Terzian
II
Mixtur
V-VII
Scharff
IV
Terz Zimbel
III
Septimen Kornett
V
Kopftrompete
16'
Trompete
8'
Oboe
8'
Vox Humana
8'
Schalmei
4'
Tremulant
IV - Brustwerk
Gemshorn
8'
Unda Maris
8'
Offenflöte
8'
Gedackt
8'
Prinzipal
4'
Quintadena
4'
Nasat
2.3/3'
Flachflöte
2'
Terz
1.3/5'
Quint
1.1/3'
Septime
1.1/7'
Schwiegel
1'
None
8/9'
Glöckleinton
II
Scharff
II
Zimbel
I
Musette
16'
Krummhorn
8'
Regal
8'
Trompetenregal
4'
Glocken
Glockenspiel
2/3'
Glockenspiel Reiterate
Kuckuckflöte
Tremulant
V - Kronwerk
Kornett
VIII-XII
Trompete
16'
Feldtrompete
8'
Vox Humana
8'
Helltrompete
4'
Ophicleide
16'
Ophicleide
8'
Glocken
2'
Tremulant
Pedal
Prinzipal
32'
Holzprinzipal
16'
Oktav
16'
Violonbass
16'
Subbass
16'
Rohrquint
10.2/3'
Oktav
8'
Violon
8'
Gedackt
8'
Grossterz
6.2/5'
Quint
5.1/3'
Oktav
4'
Blockflöte
4'
Terz
3.1/5'
Quint
2.2/3'
Septime
2.2/7'
Nachthorn
2'
Bauernflöte
1'
Rauschpfeife
III
Mixtur
V
Scharff
VII
Posaune
32'
Posaune
16'
Fagott
16'
Trompete
8'
Dulzian
8'
Trompete
4'
Singend Kornett
2'
Glocken
2+4'
Tremulant
Couplers
Drawstop couplers
Coupler
Action
Oberwerk to Rückpositiv
Electric
Rückpositiv to Hauptwerk
Oberwerk to Hauptwerk
Brustwerk to Hauptwerk
Kronwerk to Hauptwerk
Kronwerk to Rückpositiv
Brustwerk to Oberwerk
Mechanical
Rückpositiv to Pedal
Hauptwerk to Pedal
Oberwerk to Pedal
Brustwerk to Pedal
Kronwerk to Pedal 4
Electric
Kronwerk to Pedal
Rocking tablet couplers
Coupler
Action
Rückpositiv to Rückpositiv 16
Electric
Rückpositiv to Rückpositiv 4
Oberwerk to Oberwerk 16
Oberwerk to Oberwerk 4
Brustwerk to Brustwerk 16
Brustwerk to Brustwerk 4
Kronwerk to Kronwerk 16
Kronwerk to Kronwerk 4
Rückpositiv to Hauptwerk 16
Rückpositiv to Hauptwerk 4
Oberwerk to Hauptwerk 16
Oberwerk to Hauptwerk 4
Kronwerk to Hauptwerk 16
Kronwerk to Hauptwerk 4
Hauptwerk and Pedal Pistons
Gallery
Additional pictures of the organ and its components.
Ranks of metal pipes with wooden tracker-action struts visible. In the background are louvres of the oberwerk enclosed division.