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The image is a page from a document describing the organ located in the balcony of the Romanesque Hall at the Busch-Reisinger Museum, Harvard University. The organ was built in 1958 by D. A. Flentrop of Zaandam, Holland, and is designed according to the tonal and mechanical principles of classic European organs.

The document outlines the key principles of the organ's construction and functionality:

1. Tracker action: Direct mechanical linkage between key and pipe valve.
2. Short-octave pipes: The same note within each division utilizes a common windway.
3. Classic specification: Classic pipe voicing throughout the instrument.
4. Low wind pressure: Ranges from 57/16" to 2 1/16".
5. Free-standing pipes: Not enclosed in chambers or swell boxes, with each division (Hoofdwerk, Rugpositief, Borstwerk, and Pedaal) focused by a case.

The specifications of the organ are detailed as follows:

Hoofdwerk (Hauptwerk):

• Prestant: 8'
• Roerfluit: 8'
• Octaaf: 4'
• Speelfluit: 4'
• Nasard: 2 2/3'
• Woudfluit: 2'
• Tertiaan: 1 3/5'
• Mixtuur: IV Rks

Rugpositief (Positiv):

• Holpijp: 8'
• Prestant: 4'
• Roerfluit: 4'
• Gemshoorn: 2'
• Quint: 1 1/3'
• Mixtuur: II Rks
• Kromhoorn: 8'

Borstwerk (Brustwerk):

• Zingend Gedekt: 8'
• Koppelfluit: 4'
• Nachthoorn: 2'
• Sifflet: 1'
• Regaal: 8'
• Dulciaan (Swell): 8'
• Schalmei: 2'

Pedal (Pedal):

• Bourdon: 16'
• Prestant: 8'
• Gedekt: 8'
• Fluit: 4'
• Mixtuur: III Rks
• Basun: 16'
• Trompet: 8'

Couplers:

• Hoofdwerk - Pedaal
• Rugpositief - Pedaal
• Rugpositief - Pedaal
• Rugpositief - Hoofdwerk
• Borstwerk - Hoofdwerk

These methods of construction, voicing techniques, and the arrangement of different divisions contribute to the organ's classic sound and playing quality, which is characteristic of traditional European organ building.

The image shows a document from the Busch-Reisinger Museum at Harvard University, detailing information about a specific organ located in the balcony of the Romanesque Hall. Here's a detailed summary:

Organ Description:

The organ in question was built in 1958 by D. A. Flentrop of Zaandam, Holland. It is designed according to the mechanical and tonal principles of classic European organs. The key features of this organ include:

1. Tracker Action: A direct mechanical linkage between the keys and the pipe valves.
2. Slider Chests: Pipes of the same note within each division are aligned on a common windway.
3. Classic Specification: The organ has a classic pipe voicing.
4. Wind Pressure: The wind pressure ranges from 71.6" to 2 1/16".
5. Open Pipe Standing: The pipes are not enclosed in chambers or swell boxes, with each division (Hoofdwerk, Rugpositief, Borstwerk, and Pedaal) focused by a case.

Construction and Sound:

These construction techniques and voicing methods were refined over centuries of organ building. They offer a high degree of control and articulation in playing, along with a distinctive singing quality of tone, which is typically absent in modern electric-action organs.

Specification of the Organ:

The specification of the organ is divided into several divisions:

Hoofdwerk (Hauptwerk or Great Organ):

• Prestant 8'
• Roerfluit 8'
• Octaaf 4'
• Speelfluit 4'
• Nasard 2 2/3'
• Gemshoorn 2'
• Terts 1 3/5'
• Mixtuur IV Rks

Rugpositief (Positiv or Choir Organ):

• Holpijp 8'
• Prestant 4'
• Roerfluit 4'
• Gemshoorn 2'
• Quint 1 1/3'
• Mixtuur 1 1/3' Rks
• Kromhoorn 8'

Borstwerk (Brustwerk or Chest Organ):

• Zingend Gedekt 8'
• Koppelfluit 4'
• Prestant 2'
• Sifflet 1'
• Regaal 8' (Dulciaan Schalmei)
• (2' rank not listed)

Pedaal (Pedal):

• Bourdon 16'
• Prestant 8'
• Gedekt 8'
• Koraalbas 4'
• Mixtuur III Rks
• Fagot 16'
• Trompet 8'

Couplers:

• Hoofdwerk - Pedaal
• Rugpositief - Pedaal
• Borstwerk - Pedaal
• Rugpositief - Hoofdwerk
• Borstwerk - Hoofdwerk

This organ's design and specification reflect a traditional approach to organ building, focusing on mechanical precision and classic tonal quality.

The image displays a document from the Busch-Reisinger Museum at Harvard University. The document describes the organ in the balcony of the Romanesque Hall, which was built in 1958 by D. A. Flentrop of Zaandam, Holland. This organ is a modern instrument constructed according to the tonal and mechanical principles of the classic organs of Europe. Key features include tracker action with direct mechanical linkage between keys and pipe valves, slider chests, classic specification with classic pipe voicing, low wind pressure, and the organ being free-standing without enclosures.

The specification of the organ is detailed as follows:

HOOFDWERK (Hauptwerk)

• Prestant 8'
• Roerfluit 8'
• Octaaf 4'
• Speelfluit 4'
• Nasard 2 2/3'
• Vlakfluit 2'
• Terts 1 3/5'
• Mixtuur IV Rks

RUGPOSITIEF (Positiv)

• Holpijp 8'
• Prestant 4'
• Roerfluit 4'
• Gemshoorn 2'
• Quint 1 1/3'
• Mixtuur II Rks
• Kromhoorn 8'

BORSTWERK (Brustwerk)

• Zingend Gedekt 8'
• Koppelfluit 4'
• Prestant 2'
• Sifflet 1'
• Regaal 8'
• (Dulciaan 8')
• (Schalmei 2')

PEDAAL (Pedal)

• Bourdon 16'
• Prestant 8'
• Gedekt 8'
• Fluit 4'
• Mixtuur III Rks
• Bagpijp 16'
• Trompet 8'

Couplers

• Hoofdwerk - Pedaal
• Rugpositief - Pedaal
• Borstwerk - Pedaal
• Rugpositief - Hoofdwerk
• Borstwerk - Hoofdwerk

The document emphasizes that these construction methods, voicing techniques, and specification content, refined over centuries, provide the organ with control, articulation, and singing tone quality, which is often lost in modern electric-action organs.

The image displays a document from the Busch-Reisinger Museum at Harvard University detailing the specifications of an organ. The organ in question is located in the balcony of the Romanesque Hall and was built in 1958 by D. A. Flentrop of Zaandam, Holland. It is a modern instrument designed according to the tonal and mechanical principles of classic European organs.

Key features of the organ include:

1. Tracker Action: Direct mechanical linkage between the key and pipe valve.
2. Slider Chests: Pipes of the same note within each division standing on a common windway.
3. Classic Specification: With classic pipe voicing throughout the instrument.
4. Low Wind Pressure: Ranging from 1 7/16" to 2 1/16".
5. Free-Standing Divisions: Not enclosed in chambers or boxes, with each division (Hoofdwerk, Rugpositief, Borstwerk, and Pedaal) focused by a case.

The methods of construction and techniques of voicing have evolved over centuries of organ building, affording this organ a degree of playing control, tonal quality, and singing articulation that is often lost in modern electric-action organs.

The specification of the organ is broken down as follows:

HOOFDWERK (Hauptwerk):

• Prestant: 8'
• Roerfluit: 8'
• Octaaf: 4'
• Speelfluit: 4'
• Nasard: 2 2/3'
• Vlakfluit: 2'
• Terz: 1 3/5'
• Mixtuur: IV Rks

RUGPOSITIEF (Positiv):

• Holpijp: 8'
• Prestant: 4'
• Roerfluit: 4'
• Gemshoorn: 2'
• Quint: 1 1/3'
• Mixtuur: II Rks
• Kromhoorn: 8'

BORSTWERK (Brustwerk):

• Zingend Gedekt: 8'
• Koppelfluit: 4'
• Prestant: 2'
• Sifflet: 1'

PEDAAL (Pedal):

• Bourdon: 16'
• Prestant: 8'
• Gedekt: 8'
• Fluit: 4'
• Mixtuur: III Rks
• Posaun: 16'
• Trompet: 8'

Couplers:

• Hoofdwerk - Pedaal
• Rugpositief - Pedaal
• Borstwerk - Pedaal
• Rugpositief - Hoofdwerk
• Borstwerk - Hoofdwerk

The image displays a page from a document related to the Busch-Reisinger Museum at Harvard University, specifically detailing information about an organ.

The organ in question is located in the balcony of the Romanesque Hall and was built in 1958 by D. A. Flentrop of Zaandam, Holland. It is a modern instrument constructed following tonal and mechanical principles of classic European organs. The document summarizes these principles as follows:

1. Tracker action: Direct mechanical linkage between the key and pipe valve.
2. Slider chests: Pipes of the same note within each division stand on a common windway.
3. Classic specification: Features classic pipe voicing throughout the instrument.
4. Low wind pressure: Ranges from 1 7/16" to 2 1/16".
5. Organ free standing: Not enclosed in chambers or enclosed boxes, with a divisional setup (Hoofdwerk, Rugpositief, Borstwerk, and Pedaal) focused by a case.

These construction methods and voicing techniques were developed and refined over many centuries, providing the organ with a high degree of playing control, tonal articulation, and singing quality, which are not typically found in modern electric-action organs.

The specification of the organ is detailed in a table format, listing the stops for each division:

Hoofdwerk (Hauptwerk):

• Prestant 8'
• Roerfluit 8'
• Octaaf 4'
• Speelfluit 4'
• Nasard 2 2/3'
• Vlakfluit 2'
• Mixtuur IV Rks

Rugpositief (Positiv):

• Holpijp 8'
• Prestant 4'
• Roerfluit 4'
• Gemshoorn 2'
• Quint 1 1/3'
• Mixtuur II Rks
• Kromhoorn 8'

Borstwerk (Brustwerk):

• Zingend Gedekt 8'
• Koppelfluit 4'
• Prestant 2'
• Sifflot 1'
• Regaal 8'
• Dulciaan (8')
• Schalmei 2'

Pedal (Pedaal):

• Bourdon 16'
• Prestant 8'
• Gedekt 8'
• Fluit 4'
• Mixtuur III Rks
• Trompet 8'

Couplers:

• Hoofdwerk - Pedaal
• Rugpositief - Pedaal
• Borstwerk - Pedaal
• Rugpositief - Hoofdwerk
• Borstwerk - Hoofdwerk

The image shows a page from a document detailing the specifications of an organ built in the Romanesque Hall at the Busch-Reisinger Museum, Harvard University. The organ was constructed by D. A. Flentrop of Zaandam, Holland, in 1958. The organ follows modern construction principles based on the classic European organ designs.

The key principles of this organ include:

1. Tracker action, linking keys directly to pipe valves.
2. The use of slider chests, allowing pipes of the same note to stand on a common windway.
3. Classic pipe voicing throughout the instrument.
4. Low wind pressure, ranging from 1/16" to 2 1/16".
5. Open organ divisions, specifically the Hauptwerk, Rugpositief, and Borstwerk, which are not enclosed in chambers.

The specification is divided into three main divisions: Hauptwerk (Main Work), Rugpositief (Positive), and Borstwerk (Brustwerk), along with the Pedaal (Pedal). Each division includes various instruments with their respective pitches and notes.

Here is a detailed list of the instruments and their specifications:

Hauptwerk (Hauptwerk):

• Prestant 8’
• Roerfluit 8’
• Octaaf 4’
• Speelfluit 4’
• Nasard 2 2/3’
• Vlakfluit 1 3/5’
• Mixtuur IV Rks

Rugpositief (Positive):

• Holpipjp 8’
• Prestant 4’
• Roerfluit 4’
• Gemshoorn 2’
• Quint 1 1/3’
• Mixtuur II Rks
• Kromhoorn 8’

Borstwerk (Brustwerk):

• Zingend Gedekt 8’
• Koppelfluit 4’
• Prestant 2’
• Sifflet 1’
• Regaal 8’ (Ducliaan)
• (Schalmei 2’)

Pedaal (Pedal):

• Bourdon 16’
• Prestant 8’
• Gedekt 8’
• Fluit 4’
• Mixtuur III Rks
• Fugato 16’
• Trompet 8’

Couplers:

• Hoofdwerk – Pedaal
• Rugpositief – Pedaal
• Borstwerk – Pedaal
• Rugpositief – Hoofdwerk
• Borstwerk – Hoofdwerk

The image shows a typewritten document from the Busch-Reisinger Museum at Harvard University, detailing specifications for an organ that was built in 1958 by D.A. Flentrop of Zaandam, Holland. The organ, located in the balcony of the Romanesque Hall, was constructed according to the tonal and mechanical principles of classic European organs.

The principles outlined in the document include tracker action, direct mechanical linkage between key and pipes, slider chest valve, the division standing on a common windway, classic specification with classic pipe voicing throughout the instrument, and a free-standing organ with each division (Hoofdwerk, Rugpositief, Bovenwerk, and Pedaal) focused by a case.

The specifications for the organ are then listed, broken down by different sections of the organ such as Hoofdwerk, Rugpositief, Bovenwerk, and Pedaal. It includes the types of pipes (such as Prestant, Roerfluit, Octaaf, etc.) and their corresponding scales denoted in feet, for example, 8', 4', etc. Also listed are couplers which connect different parts of the organ together to allow for various combinations of sound.

The image shows a typed page from the Busch-Reisinger Museum at Harvard University. The content of the page is a detailed description and specification of an organ built in 1958 by D. A. Flentrop of Zaandam, Holland, located in the balcony of the Romanesque Hall.

The text highlights that the organ is a modern instrument adhering to the tonal and mechanical principles of classic European organs. The key principles summarized include:

1. Tracker action: direct mechanical linkage between key and pipe valve.
2. Slider chests: pipes of the same note within each division stand on a common windway.
3. Classic specification: classic pipe voicing throughout the instrument.
4. Low wind pressure ranging from 1 7/16" to 2 1/16".
5. The organ is free standing (not enclosed in chambers or swell boxes), with each division (Hoofdwerk, Rugpositief, Borstwerk, and Pedaal) focused by a case.

Additionally, the page explains that these construction methods, voicing techniques, specification content, and placement of divisions are perfected through centuries of organ building, providing a playing control and tonal quality not found in modern electric-action organs.

Following this explanation, the page lists the specification of the organ pipes and their stops by division:

• Hoofdwerk (Hauptwerk)
• Rugpositief (Positiv)
• Borstwerk (Brustwerk)
• Pedaal (Pedal)

It also provides information on couplers between these divisions.

The document is a historical and technical overview intended for understanding the design and qualities of this specific organ.

The image shows a page from a book or document titled "The Organ in the Balcony of the Romanesque Hall", published by the Busch-Reisinger Museum at Harvard University. The page provides detailed information about an organ built in 1958 by D. A. Flentrop of Zaandam, Holland, which is described as a modern instrument constructed according to the tonal and mechanical principles of classic organs from Europe.

Key Points from the Text:

1. Construction Principles:

   • Tracker action: Direct mechanical linkage between key and pipe valve.
   • Slider chests: Pipes of the same note within each division are grouped together.
   • Classic specification: Pipes are arranged on a common windway throughout the instrument, with voicing ranging from 6" to 2 1/16".
   • Low wind pressure: The organ operates at a pressure of 1 7/16", which is lower than typical modern organs.
   • Free-standing organ: The organ is not enclosed in chambers or swell boxes, with each division (Hoofwerk, Rugpositief, Borstwerk, and Pedaal) focused by a case.

2. Historical Context:

   • The construction methods, voicing techniques, and placement of divisions evolved over centuries of organ building.
   • These principles allow for a degree of playing control and articulation that modern electric-action organs lack, offering a more singing quality of tone.

3. Organ Specification:

   • The page includes a detailed specification table listing the stops (ranks of pipes) for each division of the organ:
     • Hoofwerk (Principal Work): Includes stops such as Prestant, Roerfluit, Octaaf, Speelfluit, Nasard, Vlaakfluit, Terts, and Mixtuur.
     • Rugpositief (Positive): Includes stops such as Holpijp, Prestant, Roerfluit, Geenshoorn, Quint, Mixtuur, and Krummhorn.
     • Borstwerk (Brustwerk): Includes stops such as Zingend Gedekt, Koppelfluit, Prestant, Sifflet, Regal, Dulciaan, and Schalmei.
     • Pedaal (Pedal): Includes stops such as Bourdon, Prestant, Gedekt, Fluit, Mixtuur, Fagot, and Trompet.
   • Couplers: The page also lists the couplers connecting different divisions, such as Hoofwerk – Pedaal, Rugpositief – Pedaal, Borstwerk – Pedaal, Rugpositief – Hoofwerk, and Borstwerk – Hoofwerk.

Visual Layout:

• The page is formatted in a clean, structured manner with clear headings and subheadings.
• The text is printed in a serif font, typical of academic or historical publications.
• The left margin includes the title "BUSCH-REISINGER MUSEUM" and the right margin includes "HARVARD UNIVERSITY", indicating the source or affiliation of the document.
• The page is part of an open book, with the spine visible on the right side, suggesting it is a physical book rather than a digital document.

Overall Impression:

The image depicts a scholarly or technical description of a historic organ, emphasizing its design principles and specifications. The document serves as a reference for organ builders, historians, or enthusiasts interested in the mechanics and tonal qualities of traditional pipe organs.

The image appears to be a page from a book or document discussing the organ in the balcony of the Romanesque Hall at Harvard University. The page contains text describing the organ's construction and specifications.

Some key details from the text:

• The organ was built in 1958 by D. A. Flentrop of Zaandam, Holland.
• It is a modern instrument constructed according to the tonal and mechanical principles of the classic organs of Europe.
• The principles are summarized as: 1) Tracker action, 2) Division chests with pipes of the same note within each division standing on a common windway, 3) Classic specification with classic pipe voicing throughout the instrument, 4) Low wind pressure of 1 7/16" to 2 1/16", 5) The organ free standing (not enclosed in chambers or swell boxes) with each division focused by a case.
• The organ provides a degree of playing control and articulation and singing quality of tone that has been lost in modern electric-action organs.

The page also contains a table listing the specification of the organ, including the number of pipes and their lengths for various divisions like Hoofdwerk, Rugpositief, Borstwerk, etc. as well as the pedal and couplers.

So in summary, the image depicts a page from a book or document providing details about the construction, specifications and tonal principles of the organ located in the Romanesque Hall at Harvard University.