![]() ![]() Tonally, it sounds similar to the bassoon, but at all parts of its compass is distinctly different in tone from it. The use of treble clef is even less common, and is only necessary for the most ambitious solo repertoire. ![]() Like bassoon, extended high-register passages may use tenor clef, though this is rarely necessary due to the rarity of such passages. Contrabassoon parts are notated an octave above sounding pitch, and most often use bass clef. Donald Erb and Kalevi Aho write even higher in their concertos for the instrument (to A ♭ 4 and C 5, respectively), but this is extraordinary and well beyond the expectations of the typical instrument or player. It has a sounding range beginning at B ♭ 0 (or A 0, on some instruments) and extending up over three octaves to D 4, though the highest fourth is rarely scored for. The contrabassoon is a very deep-sounding woodwind instrument that plays in the same sub-bass register as the tuba, double bass, or contrabass clarinet. Sometimes, the bell can be detached, and instruments with a low A extension often come in two parts. The instrument comes in a few pieces (plus bocal) some models cannot be disassembled without a screwdriver. ![]() ![]() The contrabassoon has a water key to expel condensation and a tuning slide for gross pitch adjustments. A wider hand position is also required, as the primary finger keys are widely spaced. Additional support is sometimes provided by a strap around the player's neck. 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. However, the octave mechanism used to play in the middle register works differently than on bassoon, and the upper register fingerings are often completely unrelated. In the lower register, its fingerings are nearly identical to bassoon. The contrabassoon reed is similar to an average bassoon's in that scraping the reed affects both the intonation and response of the instrument.Ĭontrabassoons 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. The large blades allow ample vibration that produces the low register of the instrument. The reed is considerably larger than the bassoon's, at 65–75 mm (2.6–3.0 in) in total length (and 20 mm (0.8 in) in width) compared with 53–58 mm (2.1–2.3 in) for most bassoon reeds. ![]()
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