Many professional players are able to extend the range even higher.The range of a clarinet can be divided into three distinctive registers. The lowest notes, up to the written B; above middle C, is known as the 'chalumeau register' (named after the instrument that was the clarinet's immediate ancestor), of which the top four notes or so are known as the 'throat tones'. Producing a blended tone with the surrounding registers takes much skill and practice. The middle register is termed the 'clarion' register and spans just over an octave (from written B above middle C, to the C two octaves above middle C). The top or 'altissimo' register consists of the notes from the written C# two octaves above middle C and up.Professional clarinets are usually made from African hardwood, often grenadilla, (rarely) Honduran rosewood and sometimes even cocobolo. Historically other woods, notably boxwood, were used. One major manufacturer makes professional clarinets from a posite mixture of plastic resin and wood chips Rosetta Stone
such instruments are less affected by humidity, but are heavier than the equivalent wood instrument. Student instruments are sometimes made of posite or plastic resin, monly "resonite", an ABS resin. Metal soprano clarinets were popular in the early twentieth century, until plastic instruments supplanted them; metal construction is still used for some contra-alto and contrabass clarinets. Mouthpieces are generally made of ebonite, although some inexpensive mouthpieces may be made of plastic. The instrument uses a single reed made from the cane of arundo donax, a type of grass. 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 instrument's sound.Clarinetists used to make their own reeds. Now most buy manufactured reeds, but many players make adjustments to these reeds to improve playability. Clarinet reeds e in varying "strengths" generally described from "soft" to "hard." The most mon scale is a 1-5 system with most manufacturers having slight differences in their own systems. It is important to note that there is no standardized system of designating reed strength. Beginning clarinetists are often encouraged to use softer reeds, usually a 2 to 2 1/2. Jazz clarinetists often remain on softer reeds, as they are easy for bending pitch. Most classical musicians work towards harder reed strengths as their embouchures strengthen. The benefit of a harder reed is a sturdy, round tone. The major manufacturers of Rosetta Stone Spanish
clarinet reeds include the Vandoren pany (France), Gonzalez and Zonda (both manufactured from the same cane in Argentina), Legere, Mitchell Lurie and many others. However it should be noted that the strength of the reed is only one factor in the player's set-up; the "tip-opening" and "lay" of the mouthpiece are other critical factors.The body is equipped with seven tone holes (six front, one back) and a plicated set of keys which allow every note of the chromatic scale to be produced. The most mon system of keys was named the Boehm System by its designer Hyacinthe Klos in honour of the flute designer Theobald Boehm, but is not the same as the Boehm System used on flutes. The other main system of keys is called the Oehler system and is used mostly in Germany and Austria (see History). Related is the Albert system used by some jazz, klezmer, and eastern European folk musicians. The Albert and Oehler systems are both based on the earlier Mller system.The hollow bore inside the instrument has a basically cylindrical shape, being roughly the same diameter for most of the length of the tube. There is a subtle hourglass shape, with its thinnest part at the junction between the upper and lower joint. This hourglass figure is not visible to the naked eye, but helps in the resonance of the sound. The diameter of the bore affects characteristics such as the stability of the pitch of a given note, or, conversely, the ability with which a note can be 'bent' in the manner required in jazz and other styles of music. The bell is at the bottom of the instrument and flares out to improve the tone of the lowest notes.A clarinetist moves between registers through use of the register key, or speaker key. The fixed reed and fairly uniform diameter of the clarinet give the instrument the configuration of Rosetta Stone Spanish (Spain) Levev 1-5
a cylindrical stopped pipe in which the register key, when pressed, causes the clarinet to produce the note a twelfth higher, corresponding to the third harmonic. The clarinet is therefore said to overblow at the twelfth. (By contrast, nearly all other woodwind instruments overblow at the octave, or do not overblow at all; the rackett is the next most mon Western instrument that overblows at the twelfth like the clarinet.) A clarinet must therefore have holes and keys for nineteen notes (an octave and a half, from bottom E to B;) in its lowest register to play a chromatic scale. This fact at once explains the clarinet's great range and its plex fingering system. The fifth and seventh harmonics are also available to skilled players, sounding a further sixth and fourth (actually a very flat diminished fifth) higher respectively.The highest notes on a clarinet can have a piercing quality and can be difficult to tune precisely. Different individual instruments can be expected to play differently in this respect. This bees critical if a number of instruments are required to play a high part in unison. Fortunately for audiences, disciplined players can use a variety of fingerings to introduce slight variations into the pitch of these higher notes. It is also mon for high melody parts to be split into close harmony to avoid this issue.
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