DDEX Data Dictionary for Allowed Value Sets, 2019-09-16

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Intro

Accordion

Family of box-shaped bellows-driven free-reed aerophones. Played by compressing or expanding the bellows while pressing buttons or keys, causing pallets to open, which allow air to flow across strips of brass or steel called reeds. These vibrate to produce sound inside the body. Valves on opposing reeds of each note are used to make the instrument's reeds sound louder without air leaking from each reed block. The performer normally plays the melody on buttons or keys on the right-hand manual, and the accompaniment, consisting of bass and pre-set chord buttons, on the left-hand manual.

Relationships
Parents	ReedInstrument	A reed Instrument.
Instances	Bandoneon	Type of concertina (a free-reed instrument made of expanding and contracting bellows with buttons or keys on both ends) that is especially popular in Argentina and Uruguay. It has been a mainstay of tango ensembles since the 1910s. It was developed by the German instrument dealer Heinrich Band in the early 18th century, was introduced to Argentina and Uruguay by German and Italian immigrants in the late 19th century, and has historically been produced primarily in Germany.
	ChromaticButtonAccordion	Accordion with buttons, rather than keys, arranged chromatically, rather than diatonically.
	Concertina	Free-reed musical instrument made up of expanding and contracting bellows with buttons or keys on both ends. It was developed in England and Germany in the early 19th century.
	Cordovox	Line of electronic accordions produced in the mid-20th century.
	Melodeon	Button accordion on which the melody-side keyboard contains one or more rows of buttons with each row producing the notes of a diatonic scale. The bass side of the keyboard has fewer buttons, arranged in pairs, with one button of each pair playing the root of a chord and the other the corresponding major or minor triad.
	Musette	Chromatic, bellows-blown bagpipe that was popular in French court and art music in the Baroque era.
	PianoAccordion	Accordion with a right-hand keyboard similar to a piano or organ keyboard.
	ToyAccordion	Small accordion designed for children, typically with a single octave of diatonic buttons.
Belongs to AVS	avs:InstrumentType	A Type of musical instrument.

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