harmonica

harmonica
/hahr mon"i keuh/, n.
1. Also called mouth organ. a musical wind instrument consisting of a small rectangular case containing a set of metal reeds connected to a row of holes, over which the player places the mouth and exhales and inhales to produce the tones.
2. any of various percussion instruments that use graduated bars of metal or other hard material as sounding elements.
[n. use of fem. of L harmonicus HARMONIC; in the form armonica ( < It < L) applied by Benjamin Franklin in 1762 to a set of musical glasses; later used of other instruments]

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Small rectangular wind instrument consisting of free metal reeds set in slots in a small wooden frame and blown through two parallel rows of wind channels.

Successive notes of the diatonic (seven-note) scale are obtained by alternately blowing and sucking; the tongue covers channels not required. In chromatic (12-note scale) models, a finger-operated stop selects either of two sets of reeds tuned a semitone apart. The harmonica was invented in 1821 by Friedrich Buschmann (1805–64) of Berlin, who borrowed the basic principle from the Chinese sheng. It is widely used in blues as well as folk music and country music.

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      either of two musical instruments, the friction-sounded glass harmonica (q.v.) and the mouth organ, a free-reed wind instrument produced by Friedrich Buschmann of Berlin in 1821 as the Mundäoline. It consists of free metal reeds set in slots in a small, metal-enclosed wooden frame and supplied with wind through two parallel rows of wind channels. The notes of the diatonic (seven-note) scale are obtained by alternately blowing and sucking, the reeds positioned to sound by alternate directions of wind flow. The tongue covers channels not required. In chromatic (12-note scale) models, a finger-operated stop selects either of two sets of reeds tuned a semitone apart. Compass ranges from two to four octaves, and harmonica bands include bass models. The virtuosity of some modern players has stimulated several eminent composers to write for the instrument.

      The harmonica is only one of several free-reed mouth organs. The oldest, the Chinese sheng, brought to Europe in the 18th century, provided the principle both for the harmonica and for the short-lived symphonium, in which buttons channelled air from a single mouth hole to the proper reeds.

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Universalium. 2010.

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