Johann Sebastian Bach: The Organist and His Works for the OrganPirro, André
History
Johann Sebastian Bach: The Organist and His Works for the Organ
Pirro, André
Bach, Johann Sebastian, 1685-1750; Composers -- Germany -- Biography
Here it is in full:
_Disposition_ of the new repairs upon the organ of St. Blasius.
1. Three new bellows, carefully installed, should insure a
sufficiency of wind to feed the great organ, the choir, and the new
swell.
2. The pressure should be increased in the four old bellows, to give
speech to the new Subbass of thirty-two feet, and to the lower pipes
of the other stops.
3. The old soundboards of all the bass pipes to be renewed, and the
wind-supply so to be regulated that when playing with only a single
stop drawn all the remaining registers may be brought on suddenly
without producing unsteadiness, as has been the case up to the
present time; this being of the greatest importance.
4. To be added is the Subbass of thirty-two feet, called the
_Untersatz_, which will be made of wood, to serve as the best
possible foundation for the weight of the _ensemble_. These pipes
should have a special soundboard.
5. The _Bombarde_ is to be furnished with new and larger resonators,
and the mouths of the pipes shaped differently, in order to obtain
more roundness in the emission of the tone.
6. As to the new features--the _Glockenspiel_ on the pedal, composed
of twenty-six bells of four-foot pitch, desired by the parishioners,
who will have them made at their own expense; while the manufacturer
must see that they are rendered playable.
As to the great organ, the Trumpet, which is to be removed, will be
replaced by:
7. A _Fagotto_ (Bassoon) of sixteen feet, which will permit of all
sorts of new combinations, and whose tone is to be very _délicat_ for
the _musique_.[165]
[Footnote 165: That is, for playing the _basso continuo_ of the
orchestra.]
In place of the _Gemshorn_ (Chamois horn) which will also be removed:
8. A _Viol da Gamba_ of eight feet, which will blend admirably with
the four-foot Salicional in the choir.
_Item_, if the Quint of three feet be removed, it may be replaced by
9. A _Nassat_ of three feet.
All the other stops of the great, and all those of the choir organ,
may be retained, provided they be revoiced.
10. The new swell is to be arranged as follows:
Three _Principalia en montre_[166] (_im Gesichte_).
1. Quint of three feet, } in good tin of 14 "loth" [_i.e._,
2. Octave of two feet, } 14 parts pure tin to 2 parts
3. _Chalumeau_ of eight feet, } alloy].
4. Mixture of three ranks, }
[Footnote 166: [_En montre_ signifies literally "on show";
that is, in front. The French designation for a diapason,
_Montre_, is derived from the custom of placing the pipes
of that register in an exposed position.--TR.]]
5. A _Tierce_, with which can be formed, by adding certain
other stops, a fine _Sesquialtera_.
6. Fleute douce (_sic_--a soft flute) of four feet; and,
finally,
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