MUSICAL INSTRUMENT-MAKER.

1. This artist unites in his business some of the operations of the

cabinet-maker, turner, and brazier. He also is dependent upon the

wire-drawer, and the tanner and currier, for some of his materials. So

great, however, is the number of musical instruments, and so different

their nature and construction, that the business of making them is

divided into several branches, all of which are never pursued, or

carried on, by one person. But, without reference to the several

divisions of this business, we will proceed to mention or describe the

principal instruments which are now in most common use.

2. The _organ_ is the largest of all musical instruments, and, in its

improved state, so complex that a mere description of it cannot be

well understood. Nevertheless, we will endeavor to give the reader

some idea of the general principles on which it is constructed.

3. The most essential and prominent parts of this machine are the

_wind-chest_, the _pipes_, and the _bellows_. The former of these is

an oblong box, made perfectly air-tight, and placed in a horizontal

position. The top of this chest is perforated with several rows of

holes of different sizes, and into these are inserted the pipes. Those

for the higher notes are of a cylindrical form, and are made of a

mixture of metals, chiefly of tin and lead; but those designed for the

expression of the lowest notes of the base are made of wood, in a

square form. The dimensions of these pipes are regulated by a

_diapason_, or _scale_.

4. There are as many of these rows of pipes, which are called _stops_,

as there are kinds of tones in the organ; and to every row or stop is

a plug, attached to a slide, which is denominated a _register_, and

which is designed to regulate the admission of wind into the pipes.

The pipes are also furnished with valves, which can be opened at

pleasure, by means of keys similar to those of the piano-forte. Some

organs have few, others have many stops; and, in order to regulate the

force of sound, most church organs have two or three rows of keys,

whereby a greater or less number of pipes may be filled, and the

powers of the instrument may be controlled in what is called the

_small organ_, or let loose, so as to become the _full organ_.

5. The fingering of an organ is similar to that of the piano-forte, so

far as relates to the position of the keys; but, on account of the

great number of holding notes in organ music, and the manner in which

the sound is produced, the fingers are more kept down; whence it is

considered injurious for performers on the piano-forte to practise on

the organ, lest that lightness of touch, so necessary for the former

instrument, be affected. It is hardly necessary to remark that, during

the performance on the organ, the wind-chest is filled by means of the

bellows.

6. The structure of the organ is lofty, elegant, and majestic; and its

solemnity, grandeur, and volume of tone, have obtained for it a

pre-eminence over every other instrument for the sacred purposes to

which it has been applied. The largest organ known is in St. Peter's

Church, at Rome. It has one hundred stops.

7. The church organ was probably suggested by the _water organ_ of the

Greeks, which was invented five or six hundred years before our era.

At what period, organs began to be employed in churches, cannot now be

ascertained. By some, it is said that Pope Vitelianus caused them to

be used in Rome in the seventh century. Others are of opinion, that

they were not introduced until three hundred years later. But, be this

as it may, the church organ was not in common use until the fourteenth

century; and now it is very different in its construction from that of

early times. It has received many additions and improvements since the

beginning of the fifteenth century.

8. The _hand_ or _barrel organ_ consists of a moveable cylinder, on

which, by means of wires, pins, and staples, are marked the tunes

which it is intended to perform. These pins and staples, by the

revolution of the barrel, act upon the keys within, and give admission

to the wind from the bellows to the pipes. The hand organ is so

contrived that the revolution of the barrel gives motion to the

bellows.

9. There are several instruments belonging to the class of _horns_,

all of which are made of brass or silver. Those of the latter kind of

metal are by far the softest in tone, but brass is the material most

commonly employed. The chief instruments belonging to this class are

the trumpet, the French horn, the bugle, the Kent bugle, the trombone,

and the bass-horn. The _serpent_ seems to be the connecting link

between the trumpet and the flute.

10. The instruments classed with the flute, are the common flutes of

various keys, German flutes, and several kinds of flageolets. Nearly

allied to these are the clarionet, the hautboy, and bassoon. The

breath is applied to the flageolet through an ivory tube at the end;

and, in the three last named instruments, a thin reed, capable of a

free vibration, is a part of the mouth-piece.

11. Of the instruments which produce musical sounds by the vibration

of strings, there are a great number, of which the following are the

principal;--the lyre, the harp, the guitar, the lute, the dulcimer,

the harpsichord, the spinnet, the piano-forte, the violin, the

violincello, and the base-viol. The strings of the three last are

agitated with a bow; but those of this class first mentioned, are

vibrated by the thumb and fingers, by some little instrument held in

the hand, or by little hammers, moved by keys, as in the piano-forte.

12. The _piano-forte_ is said to be the invention of Gottlieb

Schroder, of Hohenstein, in Saxony, born in Dresden, about the year

1717. Before the introduction of this instrument, the clavichord,

harpsichord, and spinnet, supplied its place. On all of these

instruments complete harmony can be produced by a single performer,

and the most difficult series of tones can be executed with rapidity,

by means of a simple mechanism.

13. The _piano-forte_ has been gradually improved, until it has become

one of the most elegant instruments in the whole compass of musical

practice. In firmness and strength of tone, the English piano-fortes

formerly surpassed all others; but, within a few years, they have been

equalled, and in some respects excelled, by those of American

workmanship. The manufacture of this instrument constitutes the most

extensive branch of musical instrument-making.

14. The instruments of percussion are the military drum, base-drum,

kettle-drum, tabor, tamborine, and the triangle. The kettle-drum has

received its name from its conformation. It has but one head, and is

used in orchestres, and by the cavalry of modern armies, especially in

Europe. The tabor has two heads, about three inches apart, and is

beaten with one stick. The tamborine has one head, drawn over a hoop,

to which are attached small bells and bits of tin, to make a jingling

sound. The time is beaten on the head with the hand.

15. The _bag-pipe_ is a wind instrument of high antiquity among the

northern nations of Europe; but it has been so long a favorite with

the natives of Scotland, that it may be considered their national

instrument. It consists of a leather bag and three pipes. The first of

the pipes is that by which the droning noise is produced, the second

emits wind from the bottom of the bag, and the third is that on which

the music is made.

16. During the performance on the bag-pipes, the bag is placed under

the arm, and worked like a bellows, while the notes are modulated as

on a flute or hautboy, by stopping and opening the holes, nine in

number, with the ends of the fingers and thumb. The bag is filled by

means of the breath blown into it through a pipe. In Rome, at the time

of Advent, the peasants of the mountains express their veneration for

the Virgin by playing on this instrument before her image.

[Illustration: The SCULPTOR.]

Popular Technology; or, Professions and Trades. Vol. 2 (of 2) · 第 16 / 85 题