The is a plucked stringed instrument. Its construction follows a model similar to that of a
guitar or a banjo, with a neck and strings stretched across a resonating body. The neck of the is
fretless and slimmer than that of a guitar or banjo. The body, called the , resembles a drum, having a hollow body that is covered front and back with skin, in the manner of a banjo. The skin used depends on the genre of music and the skill of the player. Traditionally, skins were made using dog or cat skin, with cat skin favored for finer instruments; though use of animal skins was common throughout the 20th century, use of these skins gradually fell out of favor, starting around the mid 2000s, due to social stigma and the decline of workers skilled in preparing these particular skins. Contemporary skins are often prepared with synthetic materials, such as plastic. The , or neck of the , is usually divided into three or four pieces that fit and lock together, with most made to be easily disassembled. The neck of the is a singular rod that crosses the drum-like body of the instrument, partially protruding at the other side of the body and acting as an anchor for the strings. The pegs used to wind the strings are long, thin and hexagonal in shape; though they were traditionally fashioned out of ivory, due to scarcity and trading regulations regarding and constricting the sale of ivory, many are now constructed from other materials, such as wood and plastic. The three strings of the shamisen are made of either
silk (traditionally) or
nylon. They are stretched between the pegs at the head of the instrument, and a cloth tailpiece anchored at the end of the rod which protrudes on the other side of the body. The strings are stretched across the body, raised from it by means of a bridge, or , which rests directly on the taut skin. The lowest string is purposefully laid lower at the nut of the instrument in order to create a buzz, a characteristic
timbre known as (somewhat reminiscent of the "buzzing" of a
sitar, which is called
Jivari). The upper side of the (when on the player's lap) is almost always protected by a cover known as a , and players often wear a little band of cloth on their left hand to facilitate sliding up and down the neck, known as a . The head of the instrument known as a may also be protected by a cover. The material of the strings will depend on the skill of the player. Traditionally, silk strings are used. However, silk breaks easily over a short time, so this is reserved for professional performances. Students often use nylon or 'tetron' strings, which last longer than silk, and are also less expensive.
Variations in construction and playing method The construction of the varies in shape and size, depending on the genre in which it is used. The used will also be different according to genre, if it is used at all. are classified according to size and genre. There are three basic sizes: , and . Examples of genres include , , , , , , , , and . used for traditional genres of Japanese music, such as , , and , adhere to very strict standards. Purists of these genres demand that the be made of the correct wood, the correct skin, and are played with the correct , with little room for variation. The , on the other hand, has lent itself to modern use, and is used in modern genres such as jazz and rock. As a more open instrument, variations of it exist for show. The tuning pegs, which are usually fashioned out of
ivory, and which are fashioned from a combination of ivory and tortoise-shell for example, are sometimes made of
acrylic material to give the a more modern, flashy look. Recently,
avant-garde inventors have developed a with electric pickups to be used with amplifiers, like the electric guitar. ======== The , as its Japanese name implies, is the smallest kind of . The body is small and particularly square-shaped, with a particularly thin neck, which tapers away from the strings just as it approaches the body. Generally, the is used in , the shorter and thinner neck facilitating the agile and virtuosic requirements of
kabuki. built especially for ensembles are often simply known as . The is also often used in , where it is plucked with the fingernails. ======== The is a size up from the . As its name implies, the neck is slightly thicker. As the neck approaches the body of the instrument, the distance between the strings and the fingerboard is maintained, unlike the , where it tapers off. The fingerboard ends abruptly, and the rest of the neck curves sharply into the body of the instrument. The pronounced curve that occurs just before the neck meets the body is called . The result is an extended fingerboard that gives the a higher register than the . The is favored for -style playing, with a broader, more mellow timbre. It is also an "all-round" instrument that can be used across many genres. ======== The is used in the robust music of (the music of ), , and . In these genres, a thicker neck facilitates the greater force used in playing the music of these styles. The of is quite a recent innovation, and is purposefully constructed in a much larger size than traditional style , and its neck is much longer and thicker than the traditional or . ======== The is a particularly fashioned for the performance of the song , a folk tune originating from
Shimonoseki,
Yamaguchi Prefecture. The neck of the is about half the length of most , giving the instrument the high range needed to play . The use of more typical is possible, but they must be properly adjusted with a
capo device to raise their pitch to make them suitable for use. Today the strings are made out of steel to make a better sound and the
drum heads are made out of plastic to avoid breakage in a performance.
Variations in The , the plectrum used to play the , also differ in size, shape, and material from genre to genre. The used for can be made out of three possible materials: wood, plastic, or ivory. While many teachers generally do not approve of the use of plastic, if ivory is unattainable and wood is still out of price range, plastic is considered acceptable for use. are made entirely out of plastic or ivory, plastic and tortoiseshell (), or ivory and tortoiseshell. are the easiest to identify as they are the longest, the widest, and also have a deep indentation where the tortoiseshell meets the handle. There are sometimes also that are made with a buffalo horn handle. The material, however, makes no difference in the sound. The style uses the heaviest and thickest , though the is wider. The used for is the smallest, and is almost always tipped with tortoiseshell.
Other structural variations The , or bridge, can be fashioned out of aged bamboo, ivory, ox-bone (), rosewood, buffalo horn,
wood, any combination of the above, or plastic for the student level. come in many heights. The higher the , the louder the sound will be, and the harder it is to control a rapid . Higher are not considered suitable for beginners. The used for use a height between 3.2 and 3.6. for are fashioned out of only three materials: ivory, bone, and plastic. Ivory is the most expensive and produces the most desirable sound and amplification, but due to its high price tag is normally only used in performances. Ox-bone or is the most popular material for practice and with students who are performing. Because of ivory's volume and vibration, it is normally used by a teacher or (lead ), so that the other players can follow their tone and signals. Plastic are increasingly harder in the modern day, as the material is considered to produce an undesirable sound when compared to . is not much more expensive than plastic, and most teachers openly express their displeasure with plastic and require . The used for vary between 2.6 and 2.8, though other heights can be specially ordered. for are made out of a few select materials, such as yellow or black water buffalo horn (), which are the standard for . Blackwater buffalo horn does not have a significant sound difference when cut in the style, and is far less popular. Yellow is the most widely used for -style , both in practice and performance. Plastic is available because of the higher price tag of . Many people believe that for , there is not a great sound difference between the two, but there is a high change in vibration. Plastic makes a deader sound, which is not the most favorable for . is used from time to time in practice, but never for performances. used for both and are typically 2.6 in height, though sometimes 2.7 or 2.8. are very easily identifiable due to their unique structure and use of two different materials. are very thin in width, and are not very high. The base is usually made of either bamboo, smoked bamboo, or a wood of some kind, while the top half in which the strings pass through can be made of ivory, bone, or tortoiseshell. Because of the thickness of both the strings and neck of the , the bridge in general tends to be longer than the others. Both the (the highest made, fashioned out of black buffalo horn) and the (which resembles the exactly, save for its width) are sometimes confused with the . ==Variations in playing==