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Terms Relating To Vocal Music
Dynamics
Tempo (_continued_)
Embellishments
Scales (_continued_)
Symbols Of Music Defined
Terms Relating To Forms And Styles
Musical Instruments
Chords Cadences Etc
Measure


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Terms Relating To Forms And Styles (_continued_)
The History Of Music Notation
Terminology Adoptions 1907-1910
Symbols Of Music Defined Part Two
Scales
Auxiliary Words And Endings
Tempo
Acoustics
Some Principles Of Correct Notation
Abbreviations Signs Etc


Random Music Terms

Terminology Reform
Chords Cadences Etc
Miscellaneous Terms (_continued_)
Measure
Miscellaneous Terms
Terms Relating To Forms And Styles
Symbols Of Music Defined
Terminology Adoptions 1907-1910
Dynamics
Terms Relating To Forms And Styles (_continued_)



Musical Instruments





1. Broadly speaking, musical instruments may be divided into two
classes, viz.: (1) those that have a keyboard and are therefore capable
of sounding several tones simultaneously; (2) those that (as a rule)
sound only one tone at a time, as the violin and trumpet. The piano is
of course the most familiar example of the first class, and a brief
description is therefore given.

The piano was invented about two hundred years ago by
Cristofori (1651-1731), an Italian. It was an enormous
improvement over the types of keyboard instrument that were in
use at that time (clavichord, harpsichord, spinet, virginal)
and has resulted in an entirely different style of
composition. See note on embellishments, p. 26.

2. The most characteristic things about the piano as contrasted with
its immediate predecessors are: (1) that on it the loudness and softness
of the tone can be regulated by the force with which the keys are struck
(hence the name pianoforte meaning literally the soft-loud); (2) the
fact that the piano is capable of sustaining tone to a much greater
extent than its predecessors. In other words the tone continues sounding
for some little time after the key is struck, while on the earlier
instruments it stopped almost instantly after being sounded.

The essentials of the piano mechanism are:

1. Felt hammers controlled by keys, each hammer striking two
or three strings (which are tuned in unison) and immediately
rebounding from these strings, allowing them to vibrate as
long as the key is held down. The mechanism that allows the
hammers to rebound from the strings and fall into position for
another blow is called the escapement.

2. A damper (made of softer felt) pressing against each string
and preventing it from vibrating until it is wanted.

3. A keyboard action that controls both hammers and dampers,
causing the damper to leave the string at the same instant
that the hammer strikes it.

4. A pedal (damper pedal) controlling all of the dampers, so
that at any moment all the strings may be released so as to be
free to vibrate.

Other interesting details are:

1. The strings are stretched over a thin sheet of wood called
the sound-board. This aids greatly in intensifying the tone.

2. The soft pedal (the one at the left) in an upright piano
causes the hammers to move up nearer the strings, and the
shorter swing thus afforded causes a less violent blow and
consequently a softer tone. In the grand piano this same
pedal shifts the mechanism to one side so that the hammers
strike only one or two of the strings, this resulting in a
softer tone of somewhat modified quality.

These details regarding the mechanism of the piano can easily be
verified by removing the front of any ordinary upright piano and
observing what takes place when the keys are struck or the pedals
depressed.

3. There are two familiar types of organ in use at the present time,
(1) the reed organ, (2) the pipe-organ.

The reed organ is very simple in construction, the tone being produced
by the vibration of metal reeds (fixed in little cells), through which
air is forced (or sucked) from the bellows, the latter being usually
worked by the feet of the player. More power may be secured either by
drawing additional stops, thus throwing on more sets of reeds, or by
opening the knee swells which either throw on more reeds (sometimes
octave couplers) or else open a swell box in which some of the reeds
are enclosed, the tone being louder when the box is open than when
closed. More tone may also be secured by pumping harder.

4. The essential characteristic of the pipe-organ is a number of sets
or registers of pipes called stops, each set being capable (usually)
of sounding the entire chromatic scale through a range of five or six
octaves. Thus for example when the stop melodia is drawn (by pulling
out a stop-knob or tilting a tablet), one set of pipes only, sounds when
the keyboard is played on: but if the stop flute is drawn with
melodia, two pipes speak every time a key is depressed. Thus if an
organ has forty speaking stops, all running through the entire
keyboard, then each time one key is depressed forty pipes will speak,
and if a chord of five tones is played, two hundred pipes will speak.
The object of having so many pipes is not merely to make possible a very
powerful tone, but, rather, to give greater variety of tone-color.

The pipe-organ usually has a pedal keyboard on which the feet of the
performer play a bass part, this part often sounding an octave (or more)
lower than the notes indicate.

An eight-foot stop on the organ produces tones of the same pitches as
the piano when corresponding keys are struck: A four-foot stop sounds
tones an octave higher and a two-foot stop tones two octaves higher. A
sixteen-foot stop sounds tones an octave lower than the piano, and a
thirty-two foot stop, tones two octaves lower, while some organs have
also a sixty-four foot stop which sounds three octaves lower. This
gives the organ an exceedingly wide range, its compass being greater
than that of any other single instrument, and comparable in both range
of pitches and variety of color only with the modern orchestra.

Modern pipe-organs always have a number of combination pedals or
pistons (usually both), by means of which the organist is enabled to
throw on a number of stops with one movement. The selection and use of
suitable stops, couplers, combinations, etc., is called registration.

5. The instruments mentioned at the beginning of this appendix as
belonging to the second class are more familiar in connection with
ensemble playing, being commonly associated with either band or
orchestra.

6. A band is a company of musicians all of whom play upon either wind
or percussion instruments, the main body of tone being produced by the
brass and wood-wind divisions.

Sousa's band is usually made up in somewhat the following
manner: 4 flutes and piccolos, 12 B[flat] clarinets, 1 E[flat]
clarinet, 1 alto clarinet, 1 bass clarinet, 2 oboes, 2
bassoons, 2 sarrusophones, 4 saxophones, 4 cornets, 2
trumpets, 1 soprano saxhorn (fluegelhorn), 4 French horns, 4
trombones, 2 contra-bass tubas, 4 tubas, 1 snare drum, 1 bass
drum, 2 kettle drums, cymbals, triangle, bells, castanets,
xylophone, etc.

7. An orchestra is a company of musicians performing upon stringed
instruments as well as upon wind and percussion. It is differentiated
from the band by the fact that the main body of tone is produced by the
strings.

There are four classes of instruments in the orchestra, viz.,
strings, wood-wind, brass (wind) and percussion. In addition
to these four classes, there is the harp, which although a stringed
instrument, does not belong in the same group as the other strings
because the manner of producing the tone is altogether different.

8. In the first group (the strings) are found the first and second
violins, viola, violoncello (usually spelled cello), and double-bass.
The first and second violins are identical in every way (but play
different parts), while the other members of the family merely represent
larger examples of the same type of instrument.

9. In the second group (the wood-wind) are found the flute, piccolo,
oboe, bassoon, English horn, double-bassoon, clarinet, and bass
clarinet. The English horn, double-bassoon, bass clarinet, and piccolo
are not called for in the older compositions, hence are not always
present in the orchestra.

10. In the third group (the brass choir) are found the French horn,
(usually referred to as the horn), trumpet (sometimes replaced by the
cornet) trombone, and tuba.

11. The fourth group (percussion) consists of kettle drums, bass drum,
cymbals, snare drum, triangle, bells, etc.

12. In an orchestra of about 100 players the proportion of instruments
is as about as follows, although it varies somewhat according to the
taste of the conductor, the style of composition to be performed, etc.:

18 first violins, 16 second violins, 14 violas, 12 cellos, 10 basses, 1
harp, 3 flutes, 1 piccolo, 3 oboes, 1 English horn, 3 clarinets, 1 bass
clarinet, 3 bassoons, 1 contra (or double) bassoon, 4 horns, 2 trumpets,
3 trombones, 1 tuba, 3 kettle drums, 1 bass drum, 1 snare drum, 1 each
of triangle, cymbals, bells, and other instruments of percussion,
several of which are often manipulated by one performer.

13. The cuts and brief descriptions here added will give at least a
rudimentary idea of the appearance and possibilities of the instruments
most commonly used in bands and orchestras. For fuller descriptions and
particulars regarding range, quality, etc., the student is referred to
Mason's The Orchestral Instruments and What They Do, Lavignac's Music
and Musicians, and to the various articles which describe each
instrument under its own name in Grove's Dictionary or in any good
encyclopaedia. For still fuller details some work on orchestration will
have to be consulted.

14. The violin has four strings, tuned thus [Illustration: g d' a'
e''], these making available a range of about three and one-half octaves
(g--c''''). This range[41] may be extended upward somewhat further by
means of harmonics, these being produced by lightly touching the
string at certain points (while the bow is moving across it) instead of
holding it down against the finger-board. The highest string of the
violin (viola and cello also) is often called the chanterelle
because it is most often used for playing the melody. The violin
ordinarily produces but one tone at a time, but by stopping two
strings simultaneously and so drawing the bow as to set both in
vibration, two tones may be produced at the same time, while three and
four tones can be sounded almost simultaneously.

[Footnote 41: The ranges noted in connection with these descriptions of
instruments are ordinarily the practical orchestral or band ranges
rather than those which are possible in solo performance.]



The mute (or sordino) is a small clamp made of metal, wood, or
ivory, which when clipped to the top of the bridge causes the vibrations
to be transmitted less freely to the body of the violin, giving rise to
a tone modified in quality, and decreased in power.

For certain special effects the player is directed to pluck the string
(pizzicato), this method of playing giving rise to a dry, detached
tone instead of the smooth, flowing one that is so characteristic of the
violin as commonly played.

Violins in the orchestra are divided into firsts and seconds, the
first violins being always seated at the left of the audience and the
seconds at the right.



15. The viola has four strings, also tuned in fifths, thus
[Illustration: c g d' a']. The viola looks exactly like the violin at
a little distance, and is really only a larger sized violin, having a
range a fifth lower. Its tone is not so incisive as that of the violin,
being rather heavier--more gloomy, as it is often described. The
viola is not so useful as the violin as a solo instrument because it
is not capable of producing so many varieties of color, nevertheless it
is invaluable for certain effects. In orchestral music it is of course
one of the most valuable instruments for filling in the harmony. The
viola players are usually seated behind the second violin players in
the orchestra.



16. The violoncello or cello (sometimes called bass viol) has four
strings, tuned thus: [Illustration: C G d a]. Its range is about three
and one-half octaves (from C to e'' or f''), but in solo work this range
is sometimes extended much higher. The cello is much more universally
used as a solo instrument than the viola and its tone is capable of a
much greater degree of variation. In the orchestra it plays the bass of
the string quartet (reinforced by the double-bass), but is also often
used for solo passages. Con sordino and pizzicato passages occur as
often for the cello as for the violin.

17. The double bass differs from the other members of the string
family in that it is tuned in fourths instead of in fifths. Its four
strings are tuned as follows [Illustration: EE AA D G] the entire range
of the instrument being from EE to a. In music written for double-bass
the notes are always printed an octave higher than the tones are to
sound: that is, when the bass-player sees the note [Illustration: c] he
plays [Illustration: C] this being done to avoid leger lines. The tone
of the bass is much heavier and the instrument itself is much more
clumsy to handle than the other members of the group, hence it is almost
never used as a solo instrument but it is invaluable for reinforcing the
bass part in orchestral music. The mute is rarely used on the
double-bass, but the pizzicato effect is very common and the bass
pizzicato tone is much fuller and richer than that of any other stringed
instrument.



18. The flute has a range of three octaves. [Illustration: c' c'''']
It is used in both solo and orchestral playing as well as in bands. The
flute was formerly always made of wood, but is at present often made of
metal.

19. The piccolo is a flute playing an octave higher than the one
described above. The notes are printed as for the flute, but the player
understands that the tone is to sound an octave higher. The piccolo is
used widely in band music and quite often in orchestral music also, but
since the tone is so brilliant and penetrating and is incapable of any
great variation, it is not suitable for solo performance.



20. The next four instruments to be described (oboe, bassoon,
English horn, and contra bassoon) are often referred to as the oboe
family since the principle of tone production and general manipulation
is the same in all four. The tone in these instruments is produced by
the vibration of two very thin pieces of cane, which are called together
a double-reed.

The oboe is especially valuable in the orchestra as a solo instrument,
and its thin, nasal tones are suggestive of rustic, pastoral simplicity,
both oboe and English horn being often used by orchestral composers
in passages intended to express the idea of rural out-of-door life. The
English horn is also often used in passages where the idea of
melancholy and suffering is to be conveyed to the audience. In a
military band the oboe corresponds to the first violin of the orchestra.

The bassoon and contra-bassoon are used mostly to provide a bass
part for the harmony of the wood-wind group, but they are also sometimes
employed (especially the bassoon) to depict comic or grotesque
effects.


21. The next two types of instruments to be described (clarinet and
saxophone) are alike in that the tone is produced by the vibration of
a single strip of cane (called single reed) which is held against
the lower lip of the player. The clarinet and bass clarinet are made
of wood and are used in both bands and orchestras, but the saxophone
is usually made of metal, and, the tone being more strident and
penetrating, the instrument is ordinarily used only in combination with
other wind instruments, i.e., in bands.

Since the fingering of the clarinet is excessively difficult the
performer can play in only certain keys on the same instrument, hence to
play in different keys clarinets in several keys must be provided,
there being usually three in all. The music is written as though it were
to be played in the key of C, but the tones produced are actually in
other keys. For this reason the clarinet is called a transposing
instrument. The range of the clarinet is the greatest possessed by
any of the wind instruments, that of the clarinet in C being from


The sarrusophone is an instrument with a double-reed. It is made of
brass and exists in several sizes, the only one ever used in the
orchestra being the double-bass sarrusophone, which has approximately
the same range as the double-bassoon and is sometimes (but rarely) made
use of in the orchestra instead of the latter instrument. The tone of
the sarrusophone is something like that of the bassoon.


22. The French horn (often called valve horn or simply horn)
really consists of a long tube (about 16 feet) which is bent into
circular form for convenience in handling. Its range is from
[Illustration: BB] to [Illustration: f'']. In the orchestra French
horns are used in pairs, two of the players taking the higher tones,
and two the lower. The tone is intensely mellow but incapable of any
extensive variation, but in spite of this lack of variety the tone
itself is so wonderfully beautiful that the instrument is one of the
most useful in the orchestra both in solo passages and to fill in the
harmony. The horn (as well as the trumpet and trombone) differs from
most of the wood-wind instruments in that its mouthpiece contains no
reed, the lips of the player constituting the vibrating body as they are
stretched across the mouthpiece and air is forced against them. The
horn is used in bands as well as in orchestras.


23. The range of the trumpet is [Illustration: g b''], the typical
tone being brilliant and ringing. It is used in both band and orchestra,
playing the highest parts assigned to the brass choir. The trumpet is
often replaced in both band and orchestra by its less refined cousin the
cornet because of the ease with which the latter can be played as
compared with the trumpet, and the larger number of players that are
available in consequence of this ease of execution.

24. The cornet looks something like the trumpet, but is not so slim
and graceful in appearance. Its tube is only four and one-half feet
long, as compared with a length of about eight feet in the trumpet, and
sixteen feet in the French horn.

The range of the cornet in B[flat] is from [Illustration: e] to
[Illustration: b-flat'']. The tone is somewhat commonplace as compared
with the trumpet, but because of its great agility in the rendition of
trills, repeated tones, etc., it is universally used in all sorts of
combinations, even (as noted above) taking the place of the trumpet in
many small orchestras.

25. The pitch sounded by the trombone is altered by lengthening or
shortening the tube of which the instrument is constructed, this being
possible because the lower part slides into the upper and can be pulled
out to increase the total length of the tube through which the air
passes. There are usually three trombones in the orchestra, each
playing a separate part, and the combination of this trio (with the
tuba reinforcing the bass part) is majestic and thrilling, being
powerful enough to dominate the entire orchestra in Fortissimo
passages. But the trombones are useful in soft passages also, and
their tone when playing pianissimo is rich, serene, and sonorous.

26. The bass tuba is a member of the saxhorn family[42] and supplies
the lowest part of the brass choir, as the double-bass does in the
string choir. It is used in both orchestra and band, being often
supported in the larger bands by a still lower-toned member of the same
family--the contra-bass tuba. The range of the tuba is from


27. The kettle-drum is the most important member of the percussion
family and is always used either in pairs or in threes. The size of
these instruments varies somewhat with the make, but when two drums are
used the diameter is approximately that given under the illustration.
The range of a pair of drums is one octave [Illustration: F f] and
when but two drums are used the larger one takes the tones from F to
about C of this range, and the smaller takes those from about B[flat]
to F. The most common usage is to tune one drum to the tonic, and the
other to the dominant of the key in which the composition is written.
The pitch of the kettle-drum can be varied by increasing or lessening
the tension of the head by means of thumb-screws which act on a metal
ring.

The other important members of the percussion family are shown on this
and the following page, their use being so obvious as to require no
detailed explanation.


28. The harp is one of the oldest of instruments (dating back over
6000 years), but it is only in comparatively recent years that it has
been used in the symphony orchestra..


The modern double-action harp has forty-six strings, which are tuned
in half-steps and whole-steps so as to sound the scale of C[flat] major.
It has a series of seven pedals around its base, each pedal having two
notches below it, into either of which the pedal may be lowered and
held fast. The first pedal shortens the F[flat] string so that it now
sounds F, (giving the key of G[flat]); the second one shortens the
C[flat] string so that it sounds C (giving the key of D[flat]); the
third pedal shortens the G[flat] string so that it sounds G (giving the
key of A[flat]); the fourth changes D[flat] to D (giving the key of
E[flat]), and so on until, when all the pedals are fixed in their first
notches, the scale of C is sounded instead of C[flat] as was the case
before any of the pedals were depressed. But if the first pedal is now
pushed down into the second notch the original F[flat] string is still
further shortened and now sounds the pitch F[sharp] (giving us the key
of G), and if all the other pedals are likewise successively lowered to
the second notch we get in turn all the sharp keys--D, A, E, B,
F[sharp] and C[sharp], the last-named key being obtained as the result
of having all the pedals fixed in their second notches, thus making all
the tones of the original C[flat] scale a whole-step higher so that they
now sound the C[sharp] scale.

Chords of not more than four tones for each hand may be played
simultaneously on the harp, but arpeggio and scale passages are the
rule, and are more successful than simultaneous chords. The notation of
harp music is essentially like that of piano music.





Next: Acoustics

Previous: The History Of Music Notation



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