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A comprehensive dictionary of organ stops - Allen Organ Studio of ...

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DICTIONARY OF ORGAN STOPS. 47<br />

legitimate source <strong>of</strong> economy than grooving or "ditching"<br />

an unenclosed Dulciana to a Stopped Diapason bass. On<br />

the other hand, it is quite inexcusable that <strong>organ</strong>s <strong>of</strong> the<br />

lirst magnitude, built regardless <strong>of</strong> cost, should yet be<br />

furnished throughout with zinc basses. It is sometimes<br />

urged that metal basses are too viscous, and hence liable to<br />

get out <strong>of</strong> adjustment by sinking down at the foot and<br />

mouth, to be durable. Granted metal <strong>of</strong> thick substance,<br />

this contention would seem to be exaggerated ; further,<br />

zinc feet can always be employed for the larger pipes<br />

without detriment to the tone. Ineffective zinc basses, or<br />

open metal basses <strong>of</strong> any kind, may <strong>of</strong>ten be improved by<br />

clamping a metal band firmly round the centre <strong>of</strong> the<br />

pipe, where the node occurs. Care must be taken that no<br />

rattling is caused by the band fitting badly. Sometimes<br />

even tape is successfully so utilized. It was formerly the<br />

general custom to s<strong>of</strong>ten zinc by subjecting it to the influence<br />

<strong>of</strong> heat. When so treated it is known as "cooked"<br />

or " baked " zinc. The process takes all the virtue out <strong>of</strong><br />

the metal, rendering it brittle and productive <strong>of</strong> a hard<br />

" hungry " tone. The " hard-rolled zinc " process, invented<br />

circa i860 by Kitsell <strong>of</strong> London, whose zinc basses are<br />

famous for their excellence, is now employed by the most<br />

reputable firms, though, unfortunately, it cannot truthfully<br />

be said that the practice <strong>of</strong> "cooking" zinc is yet obsolete.<br />

Some voicers prefer wood to zinc as a material for<br />

Diapason basses. There is a good deal <strong>of</strong> " knack " in the<br />

successful treatment <strong>of</strong> wood basses, and it is somewhat<br />

difficult to manipulate the "meet" <strong>of</strong> the wood and metal.<br />

There are, however, excellent examples at Hindley (Schulze);<br />

St. Mark, Leeds (Binns) ; St. Mark, Marylebone Road, W.<br />

(Whiteley); Hucknall Torkard, Notts (Musson & Compton).<br />

(n) The pedal Open Diapason, 16 ft, is made <strong>of</strong> either<br />

metal or wood. For large metal pipes <strong>of</strong> this pitch, all<br />

things considered, there is probably no better material than<br />

zinc. The stop is sometimes borrowed from the Great<br />

double and (erroneously perhaps) labelled Violon. When<br />

<strong>of</strong> wood, it is more properly termed Major Bass (q.v.). See<br />

also Inverted Languid, Stops with.<br />

is : CC,<br />

(12) Scales:—The ordinary "commercial" Diapason scale<br />

6 in. ; T. C, 3! in. ; Mid. C, 2 in. ; Mouth, either £<br />

up ^ <strong>of</strong> width. Schulze's large Diapason at St Mary, Tyne Dock, measures<br />

Mouth, £ the<br />

CC, 6£ T. C, 3f in.; Mid. C, 2\ in. ; Tr. C, if in.<br />

:<br />

/ /<br />

Wood Diapason,<br />

showing Roller.<br />

:<br />

Ti cut

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