The clarinets have a large compass. Usually three kinds of clarinets (in A, B flat and C because they are transposing instruments) are employed in the orchestra, besides the bass clarinet. The possibilities of the clarinet group have been enormously developed by Wagner. It is necessary only to recall the scene of Elsa’s bridal procession to the cathedral in the second act of “Lohengrin”; Elisabeth’s sad exit after her prayer in the third act of “Tannhäuser,” in which the melody is played by the bass clarinet, while the accompaniment is given to three flutes and eight other clarinets; the change of scene in the first act of “Götterdämmerung,” when clarinets give forth the Brünnhilde Motive; and passages in the second act of “Die Meistersinger,” in the scene at nightfall; while for a generally skillful use of the woodwind the introduction to the third act of “Lohengrin” is a shining example.
Brass Instruments.
People usually associate the brass instruments with noise. But as a matter of fact, wonderfully rich and soft tone effects can be produced on the brass by a composer who knows how to score for it. Just as the pianissimo of many violins is a finer pianissimo than that of a solo violin, so a much more exquisitely soft effect can be produced on a large brass group than on a few brass instruments or a single one. When modern composers increase the number of instruments in the brass group, it is not for the sake of noise, but for richer effects.
The trumpet is the soprano of the brass family. The fanfare in “Fidelio” when at the critical moment aid approaches; the Siegfried Motive and the Sword Motive, in the “Ring of the Nibelung,” need only be cited to prove the effectiveness of the instrument in its proper place; and Richard Strauss instances the demoniacal and fateful effect of the deep trumpet tones in the introduction to the first act of Bizet’s “Carmen.”
Although the notes of the trombone are produced by a slide, this instrument belongs to the trumpet family. For this reason, in the “Ring of the Nibelung,” Wagner, in addition to the usual three tenor trombones, reintroduced the almost obsolete bass trombone. He wanted a trombone group complete in itself, and thus to be able to utilize the peculiar tone color of the instrument; as witness in the Walhalla Motive, where it is scored for the three tenor trombones and bass trombone, resulting in a wonderfully rich and velvety quality of tone. Excepting Wagner and Richard Strauss, 192 there probably is not a composer who would not have used the bass tuba here instead of taking the trouble to revive the bass trombone. But Wagner wanted an unusually rich tone which should be solemn without a trace of sombreness, and his keen instrumental color sense informed him that he could secure it with the bass trombone, which, as it belongs to the trumpet family, has a touch of trumpet brilliancy, whereas the tone of the bass tuba is darker.
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