Chorus Diapason English
Grand Diapason English
Grand Principal English
Major Diapason English
Major Principal English
Stentor Diapason English
Grand Open Diapason English

These names have all been used to indicate a loud, full-toned 8' chorus Diapason. The name Major Principal has also been used as a synonym for Major Octave, and the name Grand Principal has been used as a synonym for Contra Principal. Chorus Diapason, Major Diapason and Stentor Diapason are mentioned only by Irwin, who lists them separately but states that they are practically synonymous. Grand Open Diapason is mentioned only by Sumner. The prefix Grand has also been used to indicate stops of sub-octave pitch.

See Stentorphone.

Variants

Grand Octave
Major Octave
Stentor Octave

Examples

No examples of Grand Open Diapason are known. Contributions welcome.

Chorus Diapason 10-2/3', 8', 5-1/3', 4', 2', Chancel Pedal; Cadet Chapel, United States Military Academy, West Point, New York, USA; Moller 1911.

Stentor Diapason 8', Solo; Convention Hall, Atlantic City, New Jersey, USA; Midmer-Losh.

Grand Principal 16', Great; South Congregational Church, Boston, Massachusetts, USA; Hook 1864.

Grand Principal 8', Choeur/Bombarde; Davies Symphony Hall, San Francisco, California, USA; Ruffatti 1984.

Grand Principal 8', Evangelienorgel; Passau Cathedral, Bavaria, Germany; Steinmeyer 1924.

Major Diapason 16', Great; Memorial Auditorium, Chattanooga, Tennessee, USA; Austin 1925.

Major Diapason 8', Great; Hammond Castle, Gloucester, Massachusetts, USA.

Grand Diapason 16', Solo; John Wanamaker Store, Philadelphia, Pennsylvania, USA.

Grand Diapason 8', Chancel Solo; First Congregational Church, Los Angeles, California, USA; Skinner/Schlicker/Moller/David 1995.

Bibliography

Audsley[1]: Grand Principal. Irwin[1]: Grand Diapason; Major Diapason; Stentor Diapason. Sumner[1]: Grand.
 
Original site compiled by Edward L. Stauff. For educational use only.
GrandDiapason.html - Last updated 10 July 2001.
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