CHAPTER XII.

MUSIC.

A perfect _sostenuto_ piano has been the dream of many a musician

whose ardent desire it was to perform his music exactly as it was

written. A sustained piano note is, indeed, the great mechanical

desideratum for the music of the future. In music, as at present

written and published for the piano, which is, and must continue to

be, the real "King of Instruments," there is a good deal of

make-believe. A long note--or two notes tied in a certain method--is

intended to be played as a continued sound, like the note of an organ;

whereas there is no piano in existence which will produce anything

even approximately approaching to that effect. The characteristic of

the piano as an instrument is _percussion_, producing, at the moment

of striking the note, a loud sound which almost immediately dies away

and leaves but a faint vibration.

The phonographic record of a pianoforte solo shows this very clearly

to the eye, because the impression made by a long note is a

deeply-marked indentation succeeded by the merest shallow

scratch--not unlike the impression made by a tadpole on mud--with a

big head and an attenuated body. Every note marked long in pianoforte

music is therefore essentially a _sforzando_ followed by a rapid

_diminuendo_. Anything in such music marked as a long note to be

sustained _crescendo_--the most thrilling effect of orchestral,

choral, and organ music--is necessarily a sham and a delusion.

The genius and skill which have enabled the masters of pianoforte

composition not only to cover up this defect in their instrument, but

even to make amends for it, by working out effects only suitable for a

percussion note, present one of the most remarkable features of

musical progress in the nineteenth century. So notable is that fact in

its relation to the pianoforte accompaniments of vocal music, that it

seems open to question whether, even in the presence of a thoroughly

satisfactory _sostenuto_ piano, much use would for many years be made

of it for this particular purpose. The effects of repeated notes

succeeding one another with increasing or decreasing force, and of

_arpeggio_ passages, have been so fully explored and made available in

standard music of every grade, that necessarily the public taste has

set itself to appreciate the pianoforte solo and the accompanied song

exactly as they are written and performed. These are, after all, the

highest forms of music which civilisation has yet enabled one or two

performers to produce.

Yet, in regard to solo instrumentalisation, there is no doubt that a

general hope exists for the discovery of a compromise between the

piano and the organ or between the piano and the string band. Some

inventors have aimed in the latter direction and others in the former;

but no one has succeeded in really recommending his ideas to the

public. Combined piano-violins and piano-organs have been shown at

each of the great Exhibitions from the middle of the nineteenth

century to its close. Several of these instruments have been devised

and constructed with great ingenuity; and yet practically all of them

have been received by the musical profession either with indifference

or with positive ridicule.

The fact is that revolutionary sudden changes in musical instruments

are rendered impossible owing to the near relationship which exists

between each instrument and the general body of the music that is

written for it. No one can divorce the two, which, as a factor in

aesthetic progress, are really one and indivisible. Therefore, if any

man invents a musical instrument which requires for its success the

sudden evolution of a new race of composers writing for it, and a new

type of educated public taste to hail these composers with delight, he

is asking for a miracle and he will be disappointed.

What is wanted is not a new instrument, but an improved piano that

shall at one and the same time correct, to some extent, the defects of

the existing instrument, and leave still available all the brilliant

effects which have been invented for it by a generation of musical

geniuses. We want the sustained note, and yet we do not wish to lose

the pretty turns and graceful devices by which the lack of it has been

hidden, or atoned for, in the works of the masters. Therefore our

sustained note must not be too aggressive. For a long time, indeed, it

must partake of the very defects which it is intended ultimately to

abolish.

In other words, we want to retain the percussion note with the dampers

and with the loud and soft pedals, in fact, all the existing

inventions for coaxing some of the notes to sustain themselves while

others are cut short, as may be desired, and at the same time we have

to add other and more effective means to assist the performer in

achieving the same object.

The more or less complicated methods aiming at the prolongation of the

residual effect of the percussion have apparently been very nearly

exhausted. Some of the most modern pianos are really marvels of

mechanical ingenuity applied to this purpose. We have now to look to

something slightly resembling the principle of the violin or of the

organ, in order to secure the additional _sostenuto_ effect for which

we are searching. Having to deal with a piano in practically its

existing form, we obviously require to take special account of the

fact that the note is begun by percussion, and that any attempt to

bring a solid substance into contact with the wire while still

vibrating, with the object of continuing its motion, is likely to

produce more or less of a jarring effect.

The air-blast type of note-continuer for _sostenuto_ effect therefore

offers the most promising outlook for the improvement of the modern

piano in the direction indicated. By directing a blast of air from a

very thin nozzle on to the vibrating wire of a piano, the sound

emitted may be very greatly intensified; and although naturally the

decreasing amplitude of the vibration may in itself tend to create a

_diminuendo_, yet it is possible to make up for this in some degree

by causing the air-blast to increase in force, through the use of any

suitable means, modified by an extra pedal as may be desired.

Delicate _pianissimo_ effects, somewhat resembling those of the Eolian

lyre, are produced by playing the notes with the air-blast alone,

without the aid of percussion. But the louder _sostenuto_ notes depend

upon the added atmospheric resistance offered by a strong current of

air to those movements of the wire which have been originally set up

by percussion, and the fact that this resistance gives rise to a

corresponding continuance of the motion. The prolongation of a note in

this way is analogous to the continual swinging of an elastic switch

in a stream of water, the current by its force producing a rhythmic

movement.

When these Eolian effects, as applied to the pianoforte, have been

carefully studied, many devices for controlling them will be brought

forward. The main purpose, however, must be to connect the air-blast

with the percussion apparatus in such a manner that, as soon as a key

is depressed, the nozzle of that particular note in the air-blast is

opened exactly at the same time that the wire is struck by the hammer,

and it remains open as long as the note is held down. The movement of

an extra pedal, however, has the effect of throwing the whole of the

air-blast apparatus out of gear and reducing the piano to a percussion

instrument, pure and simple.

It will be on the concert platform, no doubt, that this kind of

improvement will find its first field of usefulness. Performers will

require, in addition to their grand pianos, reservoirs of compressed

air attachable by tubes to their instruments. In private houses

hydraulic air-compressors will be found more convenient. When the

piano has by some such means acquired the faculty of _singing_ its

notes, as well as of _ringing_ them, its ascendency, as the finest

instrument adapted to solo instrumentalism, will be assured.

The common domestic piano is rightly regarded by many people as being

little better than an instrument of torture. One reason for this

aversion is that, in the great majority of cases, the household

instrument is not kept in tune. Probably it is not too much to say

that the man who would invent a sound cottage piano which would remain

in tune would do more for the improvement of the national taste in

music than the largest and finest orchestra ever assembled. The

constantly vitiated sense of hearing, which is brought about by the

continual jangle of notes just a fractional part of a tone out of

tune, is responsible for much of the distaste for good music which

prevails among the people. When the domestic instrument is but

imperfectly tuned, it is natural that those pieces should be preferred

which suffer least by reason of the imperfection, and these, it need

hardly be remarked, generally belong to the class of music which must

be rated as essentially inferior, if not vulgar.

The device of winding a string round a peg and twisting it up on the

latter in order to obtain tension for a vibrating note is thousands of

years old. It was the method by which tension was imparted to some of

the earliest harps and lyres of which history is cognisant; and it is

still to be found to-day in the most elaborate and costly grand piano,

with but few alterations affecting its principle of action. The

pianoforte of the future will be kept in tune by more exact and

scientific methods, attaining a certain balance between the thickness

of the wire and the tension placed upon it by means of springs and

weights.

Besides the ravages of the badly-tuned piano, much suffering is

inflicted by the barbarous habit of permitting a sounding instrument

to be used for mere mechanical exercises. The taste of the pupil is

vitiated, and the nerves of other inmates of the house are subjected

to a source of constant irritation when long series of notes,

arranged merely as muscular exercises, and some of them violating

almost every rule of musical form, are ground out hour after hour like

coffee from a coffee-mill. The inconsistency of subjecting the musical

ear and taste of a boy or girl to this process, and then expecting the

child to develop an innate taste for the delicacies of form in melody

and of the beauty of harmony, is almost as bad as would be that of

asking a Chinese victim of foot-binding to walk easily and gracefully.

The use of the digitorium for promoting the mechanical portion of a

musical education by the training of the fingers has already, to some

slight extent, obviated the evils complained of. But this instrument

is, as yet, only in its rudimentary stage of development. The dumb

notes of the keyboard ought to be capable of emitting sounds by way of

notice to the operator, in order to show when the rules have been

broken. Thus, for instance, the impact caused by putting a key down

should have the effect of driving a small weight upwards in the

direction of a metal bar, the distance of which can be adjusted.

Another bar, at a lower level, is also approached by a second weight,

and the perfect degree of evenness in the touch is indicated by the

fact that the lower bar should be made to emit a faint sound with

every note, but the higher one not at all. The closer the bars the

more difficult is the exercise, and remarkable evenness of touch can

be acquired by a progressive training with such an instrument.

The organ has been wonderfully improved during the nineteenth century.

Yet the decline of its popularity in comparison with the pianoforte

may be accounted for on very rational grounds. While ardent organists

still claim that the organ is the "King of Instruments" the public

generally entertain a feeling that it is a deposed king. It remains

for the organ-builders of the twentieth century to attack the problem

of curing its defects by methods going more directly to the root of

the difficulty than any hitherto attempted.

As contrasted with the pianoforte, the organ is extremely deficient in

that power which the conductor of an orchestra loves to

exercise--facility in accentuating and in subduing at will the work of

each individual performer. For all practical purposes the ten fingers

of a piano-player are the ten players in an orchestra; and, according

to the force with which each finger strikes the note, is the

prominence given to its effects. An air or a _motif_ may be brought

out with emphasis by one set of fingers, while the others are playing

an accompaniment with all sorts of delicate gradations of softness and

emphasis.

By multiplying the manuals, the organ-builder has endeavoured, with a

certain degree of success, to make up for the unfortunate fact that

the performer on his instrument possesses no similar facility in

making it speak louder when he submits the note to extra pressure. One

hand may be playing an air on one manual, while the second is engaged

in the accompaniment on another; and the former may be connected with

a louder stop, or with one of a more penetrating quality than the

latter.

This device, together with an elaborate arrangement of swells and

pedal-notes, has greatly enlarged the capacity of the organ for

producing those choral effects which mainly depend upon gradations of

volume. Yet the whole system, elaborate as it is, offers but a poor

substitute for the marvellous range of individuality that may be

expressed on the notes of the piano by instantaneous changes in the

values ascribed to single notes. By the same action of his finger the

pianist not only makes the note, but also gives its value; while the

method of the organist is to neglect the element of finger-pressure

and to rely upon other methods for imparting emphasis or softness to

his work.

An organ that shall emit a louder or softer note, according to the

force with which the key on the manual is depressed, will no doubt be

one of the musical instruments of the twentieth century. Whether each

key will be fitted with a resisting spring, or whether the lever will

be constructed in such a way as to throw a weight to a higher or lower

grade of position, according to the force with which it is struck, is

a question which will depend upon the results of experiment. But the

latter method is more in consonance with the conditions which have

given to the piano its wonderful versatility, and it therefore seems

the more probable solution of the two. Upon the vigour of the finger's

impact will depend the height to which a valve is thrown, and this

will determine the speed and volume of the air which is liberated to

rush into the pipe and make the note.

The nineteenth century orchestra is a fearfully and wonderfully

constructed agglomeration of ancient and modern instruments. Its

merits are attested by the fine musical sense of the most experienced

conductors, whose aim it has been so to balance the different

instruments as to produce a tastefully-blended effect, while at the

same time providing for solos and also for the rendering of parts in

which a small number of performers may contribute to the unfolding of

the composer's ideas. The orchestra cannot therefore be examined or

discussed from a mechanical point of view, however much some of the

instruments of which it is composed may be thought capable of

improvement.

But the position of the conductor himself in the front of an orchestra

is, from a purely artistic standpoint, highly anomalous. It is as if

the prompter at the performance of a drama were to be seen taking the

most conspicuous part and mixing among the actors upon the stage. If

an orchestral piece be well played without the visible presence of a

conductor, the sense of correct time reaches the audience naturally

through the music itself; and any sort of gesticulations intended to

mark it are under these conditions regarded as being out of place.

The foremost orchestral conductors of the day are evidently impressed

with this unfitness of the mechanical marking of time by the wild

waving of a stick or swaying of the body; and accordingly, however

much they exert themselves at the rehearsal, they purposely subdue

their motions during a public performance. The time is not far

distant when the object of the conductor will be to guide his band

without permitting his promptings to be perceived in any way by the

audience.

For this purpose an "electric beat-indicator" will prove useful.

Various proposals for its application have been put forward, and for

different purposes several of them are obviously feasible. For

instance, in one system the conductor sits in a place hidden from the

audience and beats time on an electric contact-maker, which admits of

his sending a special message to any particular performer whenever he

desires to do so. The signal which marks the time may be given to each

performer, either visually by a beater concealed within a small

bell-shaped cavity affixed to his desk or to his electric light; or it

may be conveyed by the sense of touch through a mechanical beater

within a small metal weight placed on the floor and upon which he sets

one of his feet.

The electric time-beater in the latter system thus taps the measure

gently on the sole of the performer's foot, and special signals, as

may be arranged, are sent to him by preconcerted combinations of taps.

The absence of any distraction from the music itself will soon be

gratefully felt by audiences, and the playing of a symphony in the

twentieth century, in which the whole orchestra moves sympathetically

in obedience to the "nerve-waves" of the electric current, will be the

highest possible presentment of the musical art.

Twentieth Century Inventions: A Forecast · 第 12 / 14 章