CONTROL OF THE STOPS.
In older days all stop-keys were moved by hand, and as a natural consequence few changes in registration could be made during performance.
Pedals for throwing out various combinations of stops were introduced into organs about 1809; it is generally believed that J. C. Bishop was the inventor of this contrivance.
Willis introduced into his organs pneumatic thumb-pistons about the year 1851. These pistons were placed below the keyboard whose stops they affected.
T. C. Lewis, of England, later introduced short key-touches arranged above the rear end of the keys of the manual. Depression of these key-touches brought different combinations of stops into use on the keyboard above which they were placed. Somewhat similar key-touches were used by the Hope-Jones Organ Co. and by the Austin Organ Co.
Metal buttons or pistons located on the toe piece of the pedal-board were introduced by the ingenious Casavant of Canada. They are now fitted by various builders and appear likely to be generally adopted. These toe-pistons form an additional and most convenient means for bringing the stops into and out of action.
At first these various contrivances operated only such combinations as were arranged by the builder beforehand, but now it is the custom to provide means by which the organist can so alter and arrange matters that any combination piston or combination key shall bring out and take in any selection of stops that he may desire. Hilborne Roosevelt of New York, was the first to introduce these adjustable combination movements.
The introduction of the above means of rapidly shifting the stops in an organ has revolutionized organ-playing, and has rendered possible the performance of the orchestral transcriptions that we now so often hear at organ recitals.
In order to economize in cost of manufacture, certain of the organ-builders, chiefly in America and in Germany, have adopted the pernicious practice of making the combination pedals, pistons or keys bring the various ranks of pipes into or out of action without moving the stop-knobs.
This unfortunate plan either requires the organist to remember which combination of stops he last brought into operation on each keyboard, or else necessitates the introduction of some indicator displaying a record of the pistons that he last touched. In the organ in the Memorial Church of the 1st Emperor William in Berlin, the builder introduced a series of electric lights for this purpose. This device can be seen in use in this country.
When this plan is adopted the player is compelled to preserve a mental image of the combinations set on every piston or pedal in the organ and identify them instantly by the numbers shown on the indicator—an impossibility in the case of adjustable combinations often changed—impracticable in any case.
Almost all the greatest organists agree in condemning the system of non-moving stop-knobs, and we trust and believe that it will soon be finally abandoned.
[1] Organists find, after using them a short time, that a row of stop-keys over the manuals is wonderfully easy to control. It is possible to slide the finger along, and with one sweep either bring on or shut off the whole organ.
CHAPTER VI.
RADIATING AND CONCAVE PEDAL BOARDS.
Pedal boards had always been made flat with straight keys until Willis and the great organist, Dr. S. S. Wesley, devised the radiating and concave board whereby all the pedal keys were brought within equal distance of the player's feet. This was introduced in the organ in St. George's Hall, Liverpool, in 1855, and Willis has refused to supply any other type of board with his organs ever since. Curiously enough, the advantages of this board were not appreciated by many players who preferred the old type of board and at a conference called by the Royal College of Organists in 1890 it was decided to officially recommend a board which was concave, but had parallel keys. The following letter to the author shows that the R. C. O. has experienced a change of heart in this matter:
THE ROYAL COLLEGE OF ORGANISTS.
LONDON, S. W., 27th May, 1909.
Dear Sir: In answer to your inquiry the Resolutions and Recommendations to which you refer were withdrawn by my Council some years ago. No official recommendation is made by them now. It is stated in our Calendar that the Council wish it understood that the arrangements and measurements of the College organ are not intended to be accepted as authoritative or final suggestions. I am,
Yours faithfully,
THOMAS SHINDLER,
Registrar.
The radiating and concave board has been adopted by the American Guild of Organists and has long been considered the standard for the best organs built in the United States and Canada. It is self-evident that this board is more expensive to construct than the other. That is why we do not find it in low-priced organs.
In most American organs built twenty years ago, the compass of the pedal board was only two octaves and two notes, from CCC to D. Sometimes two octaves only. Later it was extended to F, 30 notes, which is the compass generally found in England. Following Hope-Jones' lead, all the best builders have now extended their boards to g, 32 notes, this range being called for by some of Bach's organ music and certain pieces of the French school where a melody is played by the right foot and the bass by the left. The chief reason is that g is the top note of the string bass, and is called for in orchestral transcriptions. Henry Willis & Sons have also extended the pedal compass to g in rebuilding the St. George's Hall organ in 1898.