词条 | clarinet |
释义 | clarinet musical instrument French clarinette, German Klarinette, ![]() The instrument that is often referred to as simply a clarinet is tuned in B♭ and is about 26 inches (66 cm) long; its notes, made with the finger holes and key mechanism, sound a step lower than written. The cylindrical pipe, coupled to a reed mouthpiece, acts acoustically as a stopped pipe (closed at one end). This arrangement accounts for (1) the deep-pitched fundamental register; (2) the characteristic tone colour, caused largely by the virtual absence of even-numbered tones of the harmonic series (produced by whole and partial vibrations of the enclosed air column); and (3) the “overblowing” (effected by a thumb key) to an upper register at the 12th (third harmonic) above the fundamentals, instead of at the octave (second harmonic), as in other woodwind instruments. A high register, using fifth and seventh harmonics, extends the compass just over three and one-half octaves upward from the D (written E) below middle C. ![]() The earliest known music for the clarinet appeared in tune books published by Estienne Roger of Amsterdam (2nd ed., 1716, extant). The instrument was played with the reed up (playing with the reed down is described only after 1800, in Germany) and had two keys, with F below middle C as the lowest note. A short bell was added by 1720, and the important extension of the tube to carry the low E key (also providing the upper B, formerly imperfectly available) followed about 1740–50. By the late 18th century the instrument had five or six keys and was built in various pitches, the written music being transposed to preserve the same fingerings. Clarinets were used in most large orchestras from about 1780. ![]() The simple, or Albert, system, named for its Brussels maker, Eugène Albert, is a modernization of the earlier 13-key system of the clarinetist-builder Iwan Müller. It is used in German-speaking countries, with a complex accretion of auxiliary keywork but with conservative features in bore, mouthpiece, and reed (the last being smaller and harder than elsewhere) that give a deeper tone quality. The Boehm system, patented by Hyacinthe E. Klosé and Buffet (Paris, 1844) and still standard in most countries, incorporates much of Boehm's 1832 flute fingering system, bringing many technical advantages. It is distinguished from the other system by the ring at the back for the thumb and by the four or five keys for the right little finger. A more elaborate full Boehm model is used mainly in Italy, where orchestral players transpose A clarinet parts on the B♭ instrument. ![]() |
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