The contrabassoon, also known as the double bassoon, is a larger version of the bassoon, sounding an octave lower. Its technique is similar to its smaller cousin, with a few notable differences.
Contrabassoons feature a slightly simplified version of bassoon keywork, though all open toneholes on bassoon have necessarily been replaced with keys and pads due to the physical distances. In the lower register, its fingerings are nearly identical to bassoon. However, the octave mechanism used to play in the middle register works differently to the bassoon, and the upper register fingerings are often completely unrelated.
The instrument is twice as long as the bassoon, curves around on itself twice and, due to its weight and shape, is supported by an endpin rather than a seat strap. Additional support is sometimes provided by a strap around the player's neck. A wider hand position is also required, as the primary finger keys are widely spaced. The contrabassoon has a water key to expel condensation and a tuning slide for gross pitch adjustments. The instrument comes in a few pieces (plus bocal); some models cannot be disassembled without a screwdriver. Sometimes, the bell can be detached, and instruments with a low A extension often come in two parts.
Contrabassoon parts are notated an octave above sounding pitch, and most often use bass clef. Like bassoon, extended high-register passages may use tenor clef, though this is rarely necessary due to the rarity of such passages. The use of treble clef is even less common, and is only necessary for the most ambitious solo repertoire.
Tonally, it sounds similar to the bassoon, but at all parts of its compass is distinctly different in tone from it. There is a "thinning" of the sound in extreme high register, as in all double reeds, but unlike oboe and bassoon which become more penetrative and "intense" in this register, the contrabassoon's sound becomes less audibly substantial and is easily drowned out. Conversely, contrabassoon also has a booming quality, similar to organ pedals, in its lowest register; enabling it to produce powerful contrabass tones when desired (aided by the flared bell, which the bassoon does not have). The contrabassoon can also produce a "buzz" or "rattle", particularly when loud and in its low register, which gives the sound an edged quality. This effect can be mitigated greatly by changes to the reed design, but it can be a desirable quality for some players, as it adds to the sinister or monstrous quality which some contrabassoon writing seeks to affect, and causes the contrabassoon sound to be more prominent in musical textures.
For more than a century, between 1880 and 2000, Heckel’s design remained relatively unchanged. Chip Owen, at the American company Fox, began manufacturing an instrument in 1971 with some improvements. Generally, during the 20th century changes to the instrument were limited to an upper vent key near the bocal socket, a tuning slide, and a few key linkages to facilitate technical passages. In 2000, Heckel announced a completely new keywork for its instrument and Fox introduced its own new key system based on input from New York Philharmonic contrabassoonist Arlan Fast. Both companies' improvements allow for improved technical facility as well as greater range in the high register. Benedikt Eppelsheim developed the Contraforte, a "redesigned contrabassoon", in collaboration with Guntram Wolf in the early 2000s.
The contrabassoon is a supplementary orchestral instrument and is most frequently found in larger symphonic works, often doubling the bass trombone or tuba at the octave. Frequent exponents of such scoring were Johannes Brahms and Gustav Mahler, as well as Richard Strauss, and Dmitri Shostakovich. The first composer to write a separate contrabassoon part in a symphony was Beethoven, in his Fifth Symphony (1808) (it can also be heard providing the bass line in the brief "Janissary band" section of the fourth movement of his Symphony No. 9, just prior to the tenor solo), although Bach, Handel (in his Music for the Royal Fireworks), Joseph Haydn (e.g., in both of his oratorios The Creation and The Seasons, where the part for the contrabassoon and the bass trombone are mostly, but not always, identical), and Mozart had occasionally used it in other genres (e.g., in the Coronation Mass). Composers have often used the contrabassoon to comical or sinister effect by taking advantage of its seeming "clumsiness" and its sepulchral rattle, respectively. A clear example of this can be heard in Paul Dukas' The Sorcerer's Apprentice (originally scored for contrabass sarrusophone). Igor Stravinsky's The Rite of Spring is one of the few orchestral works that requires two contrabassoons.
As a featured instrument, the contrabassoon can be heard in several works, most notably Maurice Ravel's Mother Goose Suite, and at the opening of Piano Concerto for the Left Hand. Gustav Holst gave the contrabassoon multiple solos in The Planets, primarily in "Mercury, the Winged Messenger" and "Uranus, the Magician".
Solo literature is somewhat lacking, although some modern composers such as Gunther Schuller, Donald Erb, Michael Tilson Thomas, John Woolrich, Kalevi Aho, Ruth Gipps and Daniel Dorff have written concertos for this instrument (see below). Stephen Hough has written a trio for piccolo, contrabassoon and piano Was mit den Tränen geschieht. Contrabassoon may theoretically play music for bassoon, which has much more solo repertoire, but the sonic and mechanical differences from the bassoon (and bassoon's comparative facility in the high register) mean that bassoon repertoire is not always suited to contra.
One of the few contrabassoon soloists in the world is Susan Nigro, she has released several CDs.
Henry Skolnick commissioned, premiered and recorded Aztec Ceremonies for contrabassoon by Graham Waterhouse. Bassoon with a View innova.mu
A rare use of the instrument in jazz was by Garvin Bushell, who sat in as a guest with saxophonist John Coltrane during his 1961 recording sessions at the Village Vanguard.
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