Clarinet

The clarinet is a single-reed musical instrument in the woodwind family, with a nearly cylindrical bore and a flared bell.

Clarinets comprise a family of instruments of differing sizes and pitches. The clarinet family is the largest woodwind family, ranging from the BB♭ contrabass to the A♭ piccolo. The B♭ soprano clarinet is the most common type, and is the instrument usually indicated by the word "clarinet".

German instrument maker Johann Christoph Denner is generally credited with inventing the clarinet sometime around 1700 by adding a register key to the chalumeau, an earlier single-reed instrument. Over time, additional keywork and airtight pads were added to improve the tone and playability. Today the clarinet is a standard fixture of the orchestra and concert band and is used in classical music, military bands, klezmer, jazz, and other styles.

Etymology

The word "clarinet" may have entered the English language via the French clarinette (the feminine diminutive of Old French clarin), or from Provençal clarin ‘oboe’, originating from the Latin root clarus ‘clear’. The word is related to Middle English clarion, a type of trumpet, the name of which derives from the same root.

The earliest mention of the word "clarinette" being used for the instrument dates to a 1710 order placed by the Duke of Gronsfeld for two instruments made by Jacob Denner. The English form "clarinet" is found as early as 1733, and the now-archaic "clarionet" appears from 1784 until the early 20th century.

A person who plays the clarinet is called a clarinetist (in North American English), a clarinettist (in British English), or simply a clarinet player.

Development

The modern clarinet developed from a Baroque instrument called the chalumeau. This instrument was similar to a recorder, but with a single-reed mouthpiece and a cylindrical bore. Lacking a register key, it was played mainly in its fundamental register, with a limited range of about one and a half octaves. It had eight finger holes, like a recorder, and a written pitch range from F₃ to G₄. At this time, contrary to modern practice, the reed was placed in contact with the upper lip. Around the beginning of the 18th century the German instrument maker Johann Christoph Denner (or possibly his son Jacob Denner) equipped a chalumeau in the alto register with two keys, one of which enabled access to a higher register. This second register did not begin an octave above the first, as with other woodwind instruments, but started an octave and a perfect fifth higher than the first. A second key, at the top, extended the range of the first register to A₄ and, together with the register key, to B♭₄. Later, Denner lengthened the bell and provided it with a third key to extend the pitch range down to E₃.

After Denner's innovations, other makers added keys to improve tuning and facilitate fingerings and the chalumeau fell into disuse. The clarinet of the Classical period, as used by Mozart, typically had five keys. Mozart suggested extending the clarinet downwards by four semitones to C₃, which resulted in the basset clarinet that was about 18 cm longer, made first by Theodor Lotz. In 1791 Mozart composed the Concerto for Clarinet and Orchestra in A major for this instrument, with passages ranging down to C₃. By the time of Beethoven (c. 1780–1820), the clarinet was a fixed member in the orchestra.

Acoustics

The clarinet's cylindrical bore is the main reason for its distinctive timbre, which varies between the three main registers (the chalumeau, clarion, and altissimo). The A and B♭ clarinets have nearly the same bore and nearly identical tonal quality, although the A typically has a slightly warmer sound. The tone of the E♭ clarinet is brighter and can be heard through loud orchestral textures. The bass clarinet has a characteristically deep, mellow sound, and the alto clarinet sounds similar to the bass, though not as dark.

The production of sound by a clarinet follows these steps:

Materials

Clarinet bodies have been made from a variety of materials including wood, plastic, hard rubber or Ebonite, metal, and ivory. The vast majority of wooden clarinets are made from African blackwood (grenadilla), or, more uncommonly, Honduran rosewood, cocobolo, or mopane. Historically other woods, particularly boxwood and ebony, were used. Since the mid-20th century, clarinets (particularly student or band models) are also made from plastics, such as acrylonitrile butadiene styrene (ABS). One of the first such blends of plastic was Resonite, a term originally trademarked by Selmer. The Greenline model by Buffet Crampon is made from a composite of resin and the African blackwood powder left over from the manufacture of wooden clarinets. Metal soprano clarinets were popular in the late 19th century, particularly for military use. Metal is still used for the bodies of some contra-alto and contrabass clarinets and the necks and bells of nearly all alto and larger clarinets.

Mouthpieces are generally made of hard rubber, although some inexpensive mouthpieces may be made of plastic. Other materials such as glass, wood, ivory, and metal have also been used. Ligatures are often made of metal and tightened using one or more adjustment screws; other materials include plastic, string, or fabric.

Reed

The clarinet uses a single reed made from the cane of Arundo donax. Reeds may also be manufactured from synthetic materials. The ligature fastens the reed to the mouthpiece. When air is blown through the opening between the reed and the mouthpiece facing, the reed vibrates and produces the clarinet's sound.

Most players buy manufactured reeds, although many make adjustments to these reeds, and some make their own reeds from cane "blanks". Reeds come in varying degrees of hardness, generally indicated on a scale from one (soft) through five (hard). This numbering system is not standardized—reeds with the same number often vary in hardness across manufacturers and models. Reed and mouthpiece characteristics work together to determine ease of playability and tonal characteristics.

Components

The reed is attached to the mouthpiece by the ligature, and the top half-inch or so of this assembly is held in the player's mouth. In the past, string was used to bind the reed to the mouthpiece. The formation of the mouth around the mouthpiece and reed is called the embouchure. The reed is on the underside of the mouthpiece, pressing against the player's lower lip, while the top teeth normally contact the top of the mouthpiece (some players roll the upper lip under the top teeth to form what is called a 'double-lip' embouchure). Adjustments in the strength and shape of the embouchure change the tone and intonation. Players sometimes relieve the pressure on the upper teeth and inner lower lip by attaching a pad to the top of the mouthpiece or putting temporary cushioning on the lower teeth.

The mouthpiece attaches to the barrel. Tuning can be adjusted by using barrels of varying lengths or by pulling out the barrel to increase the instrument's length. On basset horns and lower clarinets, there is a curved metal neck instead of a barrel.

The main body of most clarinets has an upper joint, whose mechanism is mostly operated by the left hand, and a lower joint, mostly operated by the right hand. Some clarinets have a one-piece body. The modern soprano clarinet has numerous tone holes—seven are covered with the fingertips and the rest are operated using a set of 17 keys. The most common system of keys was named the Boehm system by its designer Hyacinthe Klosé after flute designer Theobald Boehm, but it is not the same as the Boehm system used on flutes. The other main key system is the Oehler system, which is used mostly in Germany and Austria. The related Albert system is used by some jazz, klezmer, and eastern European folk musicians. The Albert and Oehler systems are both based on the early Mueller system.

The cluster of keys at the bottom of the upper joint (protruding slightly beyond the cork of the joint) are known as the trill keys and are operated by the right hand. The entire weight of the smaller clarinets is supported by the right thumb behind the lower joint on what is called the thumb rest. Larger clarinets are supported with a neck strap or a floor peg.

Clarinet family and ranges

Clarinets have the largest pitch range of common woodwinds. The range of a clarinet is usually divided into three registers. The low chalumeau register extends from the notated E₃ (C₃ if available) to the notated B♭₄. The middle clarion register covers a little more than an octave (from the written B₄ to C₆). The high altissimo register consists of the notes above it. The three registers have characteristically different sounds: the chalumeau is full and dark, the clarion register is brighter and sweet, like a high trumpet from a distance, and the altissimo can be piercing and sometimes shrill.

Initially only C clarinets were available, but soon clarinets in B♭ and A and the basset horn in F and G were developed. From the 19th century to the middle of the 20th century, an extensive family of clarinets developed, from high A♭ to subcontrabass. Apart from the clarinets tuned in C (C soprano clarinet and basset clarinet in C), all clarinets are transposing instruments. The instruments above the C clarinet sound higher than notated, such as the aforementioned A♭ clarinet a sixth higher, the longer instruments sound lower, such as the B♭ clarinet by one tone and the B♭ contrabass clarinet by two octaves and one tone.

Performance practice

The modern orchestra frequently includes two clarinetists, each usually equipped with a B♭ and an A clarinet, and clarinet parts commonly alternate between the instruments. The standard of using soprano clarinets in B♭ and A has to do partly with the history of the instrument and partly with acoustics and aesthetics. Before about 1800, due to the lack of airtight pads, practical woodwinds could have only a few keys. The low (chalumeau) register of the clarinet spans a twelfth (an octave plus a perfect fifth) before overblowing, so the clarinet needs keys/holes to produce all nineteen notes in this range. This involves more keywork than on instruments that "overblow" at the octave—oboes, flutes, bassoons, and saxophones need only twelve notes before overblowing. Since clarinets with few keys cannot play chromatically, they are limited to playing in closely related keys. With the advent of airtight pads and improved key technology, more keys were added to woodwinds and the need for clarinets in multiple keys was reduced. The use of instruments in C, B♭, and A persisted, with each used as specified by the composer.