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A harmonic series is the sequence of harmonics, musical tones, or pure tones whose frequency is an integer multiple of a fundamental frequency.
String instruments, stringed instruments, or chordophones are musical instruments that produce sound from vibrating strings when a performer plays or sounds the strings in some manner.
The marimba is a musical instrument in the percussion family that consists of wooden bars that are struck by mallets. Below each bar is a resonator pipe that amplifies particular harmonics of its sound. Compared to the xylophone, the timbre of the marimba is warmer, deeper, more resonant, and more pure. It also tends to have a lower range than that of a xylophone. Typically, the bars of a marimba are arranged chromatically, like the keys of a piano. The marimba is a type of idiophone.
The lyre is a stringed musical instrument that dates back to 1400 BC in ancient Greece. It is known for its use in Greek classical antiquity and later periods. A similar instrument was created and used earlier, around 2600 BC, in the Middle East.
Hornbostel–Sachs or Sachs–Hornbostel is a system of musical instrument classification devised by Erich Moritz von Hornbostel and Curt Sachs, and first published in the Zeitschrift für Ethnologie in 1914. An English translation was published in the Galpin Society Journal in 1961. It is the most widely used system for classifying musical instruments by ethnomusicologists and organologists. The system was updated in 2011 as part of the work of the Musical Instrument Museums Online (MIMO) Project.
The musical bow is a simple string instrument used by a number of South African peoples, which is also found in the Americas via slave trade. It consists of a flexible, usually wooden, stick 1.5 to 10 feet long, and strung end to end with a taut cord, usually metal. It can be played with the hands or a wooden stick or branch. It is uncertain if the musical bow developed from the hunting bow, though the San or Bushmen people of the Kalahari Desert do convert their hunting bows to musical use.
The berimbau is a single-string percussion instrument, a musical bow, originally from Africa, that is now commonly used in Brazil.
A resonator is a device or system that exhibits resonance or resonant behavior. That is, it naturally oscillates with greater amplitude at some frequencies, called resonant frequencies, than at other frequencies. The oscillations in a resonator can be either electromagnetic or mechanical. Resonators are used to either generate waves of specific frequencies or to select specific frequencies from a signal. Musical instruments use acoustic resonators that produce sound waves of specific tones. Another example is quartz crystals used in electronic devices such as radio transmitters and quartz watches to produce oscillations of very precise frequency.
The EBow is an electronic device used for playing string instruments, most often the electric guitar. It is manufactured by Heet Sound Products, of Los Angeles, California, US. It was invented by Greg Heet in 1969, introduced in 1976 and patented in 1978.
The tro is Cambodia's traditional spike fiddles, bowed string instruments that are held and played vertically. Spike fiddles have a handle that passes through the resonator, often forming a spike, on the bottom side where it emerges. The family is similar or distantly related to the Chinese erhu or huqin. The instruments have a soundbox at the bottom of the stick, covered with leather or snake skin. Strings run from pegs at the top of the stick and secured at the bottom, running across the soundbox. The larger the soundbox, the lower the pitch range. Instruments in this family include the two-stringed tro ou, tro sau thom, tro sau toch and tro che, as well as the three-stringed tro Khmer spike fiddle. The two-stringed tros are tuned in a fifth, while the three-stringed tro Khmer is tuned in fourths. The tros, with the exception of the tro Khmer, are strung so that the bowstring is permanently placed between the two stings. When the musician plays, the placement of the bow causes the strings to be played at once, one from below and one from above. In contrast, western fiddles are played with the bow pushing on each string from the outside, as is also the case with the tro khmer.
The bladder fiddle was a folk instrument used throughout Europe and in the Americas. The instrument was originally a simple large stringed fiddle made with a long stick, one or more thick gut strings, and a pig's-bladder resonator. It was bowed with either a notched stick or a horsehair bow.
The malunga is a single-stringed musical bow played by the Siddi of India, who are the descendants of East African immigrants. It produces two tones, an octave apart, and the knuckle of the hand supporting the instrument may be pressed against the string to vary the pitch. It is struck with a stick and, as with the berimbau of Brazil, the hand holding the stick also holds a rattle. The malunga has a gourd resonator which amplifies the instrument's sound. The placement of this rattle along the string also varies the pitch produced by the Malunga.
The umuduri is a Burundian and Rwandan stringed instrument. It is a musical bow consisting of a string supported by a flexible wooden string bearer or bow that is 125–135 cm in length. The string is traditionally made from plant fiber and animal gut. However, metal wire is becoming widespread.
The American composer Harry Partch (1901-1974) composed using scales of unequal intervals in just intonation, derived from the natural Harmonic series; these scales allowed for more tones of smaller intervals than in the standard Western tuning, which uses twelve equal intervals. One of Partch's scales has 43 tones to the octave. To play this music, he built many unique instruments, with names such as the Chromelodeon, the Quadrangularis Reversum, and the Zymo-Xyl.
Bar zither is class of musical instruments within the Hornbostel-Sachs classification system for a type of simple chordophone, in which the body of the instrument is shaped like a bar.
The segankuru is a bowed trough zither, bar zither or musical bow, a string instrument found in Botswana and other areas of South Africa, and found under many names. It consists of a wooden body attached to a tin can resonator, with a single metal string played with a bow. The instruments main role is for self or group entertainment for young men, while herding cattle, etc.
The kse diev or khse mhoy is a Cambodian musical bow with a single copper or brass string and a gourd resonator. The resonator is held to the bow with a nylon cord and is open at the other end. The nylon cord holds on the resonator and acts as a loop around the copper string, bringing it to the stick. The nylon loop acts as the nut on a guitar, the place below which the string vibrates and sound begins.
The tube zither is a stringed musical instrument in which a tube functions both as an instrument's neck and its soundbox. As the neck, it holds strings taut and allows them to vibrate. As a soundbox or it modifies the sound and transfers it to the open air. The instruments are among the oldest of chordophones, being "a very early stage" in the development of chordophones, and predate some of the oldest chordophones, such as the Chinese Se, zithers built on a tube split in half. Most tube zithers are made of bamboo, played today in Madagascar, India, Southeast Asia and Taiwan. Tube zithers made from other materials have been found in Europe and the United States, made from materials such as cornstalks and cactus.
