II
Wind-Instruments of Wood
THE FLUTE
Next in importance to the strings is the wood-wind, which is divided into three families—flutes, oboes, and clarinets. To the first family belong the piccolo and the flute; to the second the oboe, English horn, and bassoon, and to the third the clarinet and bass clarinet. In the modern orchestra, flutes, clarinets, oboes, and bassoons are usually employed in pairs, while there is, if needed, one piccolo, one English horn, and one bass clarinet. The flute is the most agile of the wind-instruments, and is employed very freely in the orchestra. Its compass is three octaves upward from the C below the treble clef, but the two uppermost notes are seldom used. The tone is soft and sweet in the medium register, clear and penetrating in the upper, and singularly characteristic in the lower. Rapid passages are readily executed on the flute, but the instrument’s powers of expression are limited, owing partly to its tone-quality and partly to the impossibility of giving a wide crescendo or diminuendo to any passage played upon it.
Nevertheless, it can be employed expressively when used with judgment. Berlioz calls attention to Gluck’s use of it in his “Orfeo” in the scene in the Elysian fields, where it voices the humility and resignation of the bereaved husband. In the upper register rapid sequences for the flute have an air of gayety. Well-known passages which illustrate this are that near the close of the “Leonora” overture No. 3, and that near the close of the finale of the “Eroica” symphony. The piccolo, or octave-flute, is simply a small, shrill-voiced flute, sounding an octave higher than the ordinary instrument. The sounds in its second octave are well adapted to pieces of a joyous character, while its upper register is useful for violent effects, such as a storm or a scene in the infernal regions. In grotesque and supernatural scenes it is also often employed with good results.
THE OBOE
The oboe is a reed instrument with a peculiar pastoral tone, which, when once recognized, can never again be mistaken for that of another instrument. It is not possible to describe this tone, beyond saying that the average hearer thinks of it as the tone of a shepherd’s pipe. The instrument is so well suited to pastoral music that the principal melody is almost always given to it in passages having such a character. Rapid passages, except in rare instances, are not suited to the utterance of the oboe, though when it joins with the whole mass of instruments in a tutti, anything that is not impossible may be written for it. But it is essentially a lyric instrument of tender expression, and it is seldom called upon for either gayety or tragedy. Berlioz says: “Candor, artless grace, soft joy, or the grief of a fragile being, suits the oboe’s accents. It expresses them admirably in its cantabile.” An excellent example of the oboe’s quality as a tender lyric singer is the opening of the slow movement of Schubert’s symphony in C:
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Its pastoral character is illustrated by hundreds of familiar passages. Perhaps none is more familiar than this from the first scene of Gounod’s “Faust.”
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To the oboe belongs the duty of sounding the A to which the whole orchestra tunes. This privilege dates from the time of Handel, when it was the principal wind-instrument employed in the band.
THE ENGLISH HORN
The English horn is not, as its name seems to imply, an instrument of brass, but of wood. It is, in fact, an alto oboe. Its compass is from the E below the treble clef to the F on the fifth line. This carries it five tones below the oboe. Its tone is similar to that of the oboe, but is heavier and has a dryer quality. Its character is less feminine, more sombre, and more pathetic. Yet it is not incapable of joyous expression, if the expression is not strained by the context. In all the range of music there are no such examples of the eloquence of the English horn as in the works of Wagner, who made it speak with a human voice. The finest instances of its powers are to be found in his later dramas, and perhaps the most familiar are in “Tristan und Isolde.” The English horn is the instrument which imitates the shepherd’s pipe in the melancholy wail of Act III., played while Tristan is waiting for news of the ship.
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When the ship is sighted by the herdsman, his pipe (still the English horn) bursts into this pæan of joy:
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THE BASSOON
The bassoon is the bass of the oboe, and it occupies among the wood-wind instruments a position similar to that of the ’cello among the strings. Its upper tones resemble somewhat those of the English horn, while its lower tones are deep and hoarse. Its extreme compass is from the B flat below the bass clef to the F at the top of the treble, but the last four notes are uncertain and of unnatural quality. Music for the bassoon, like that for the ’cello, is written on three clefs—bass, tenor, and treble. Bassoons are employed in pairs in the orchestra. They are used either to fill out the harmonies, to strengthen the bass, or as solo instruments.
The bassoon is capable of a great variety of effects. Its upper register has a pastoral quality, combined with a certain plaintiveness, which makes it suitable to the utterance of gentle grief or melancholy. Composers have frequently availed themselves of the humorous effects to be obtained by making the bassoon play music which ill comports with the quality of its tone. The effect is really funny, though the fun arises, not from the inherent humor of the instrument, but from the incongruity of the singer and the song. The most familiar example of this kind of fun is in the clown’s march in Mendelssohn’s “Midsummer Night’s Dream” music:
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There is also a contra-bass bassoon, which sounds an octave lower than the ordinary bassoon. The reader will find that in orchestra scores the bassoons are usually designated by their Italian title, fagotti. This name is applied to the instrument because it resembles two sticks bound together, as in a bundle of fagots.
THE CLARINET
The clarinet is a wind-instrument of wood with a very mellow and beautiful tone. It differs from the oboe chiefly in the construction of its mouth-piece, which contains the sound-producing mechanism. The instruments of the oboe family have mouth-pieces with two vibrating reeds; those of the clarinet family have only one reed. This accounts chiefly for the difference in the character of the tone. The compass of the clarinet is from the E below the treble clef three octaves and a half upward. The notes of the uppermost octave are shrill and are seldom used. They are employed occasionally when a screaming effect is desired. Clarinets are used in pairs in the orchestra, sometimes to fill out harmonies, and frequently for solo effects. There is hardly anything which cannot be done with a clarinet, for the instrument is capable of great agility and brilliancy, and at the same time is the most expressive of all the wind-instruments. It can be played pianissimo or fortissimo through most of its compass, and the most beautiful crescendo and diminuendo effects can be obtained. There is no more familiar example of the high expressiveness of the clarinet than that found in the overture to “Tannhäuser,” where the clarinet intones the pleading passage afterward sung in the first scene by Venus:
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The reader will find that in scores the clarinet part is usually written in some other key than that of the composition. This is because three kinds of clarinet are employed, clarinets in A, B flat, and C. A clarinet in B flat means one whose pitch is a whole tone below the standard, so that when one plays the scale of C natural on it he gets the sounds of the scale of B flat, just as he would from a piano tuned a whole tone too low. A clarinet in A is a tone and a half below pitch in the scale of C. One in C produces the scale of C when played in C. The reason for using different kinds of clarinets is that it is difficult to play the instrument in remote keys. By using an A clarinet for keys having sharps and a B flat clarinet for keys having flats, much of the difficulty is obviated. A clarinet in A is producing the sounds of the key of three sharps when it is playing in C. To get the sounds of the key of six sharps, it is necessary only to write for the A clarinet in three sharps. Similarly, to get the sounds of the key of five flats one needs only to write in three flats for a clarinet in B flat. The kind of clarinet to be used is designated in the score. Instruments treated in this manner are called transposing instruments. (See Chapter V.)
THE BASS CLARINET
The bass clarinet is a clarinet whose compass extends an octave below that of the B flat clarinet. It is a long instrument with a curved bell at the lower end, so that it looks like an old-fashioned Dutch pipe. Bass clarinets in B flat and A are employed, and the music is usually written on the treble clef, thus transposing an octave below. Wagner uses the bass clef, which is more convenient for the student of his scores than for the performer. The tone of the lower register of the bass clarinet is sonorous and rich, and affords a fine bass for wood-wind passages.
As a solo instrument the bass clarinet is admirable in its dignity. The instrument is used singly, not in pairs. As a fine example of the effect of the bass clarinet, the music of Elizabeth’s final exit in Act III. of “Tannhäuser” may be commended.
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