accordina

France a portable, mouth-blown free-reed instrument with a chromatic button keyboard, used in jazz, French chanson, and contemporary classical music.
acordeón diatónico

Mexico, Colombia, Dominican Republic a portable bellows-blown accordion with one or more rows of buttons that produce different notes depending on whether the bellows are being pushed or pulled, used in various central and south american folk music styles like Norteño, Tejano, Vallenato, and Merengue Típico
bandoneon

Argentina, Uruguay a bellows-driven free-reed accordion in concertina family with a complex layout of buttons on both sides, used to created the distinctive sound of Tango music and Argentinian folk music.

bawu
China a side-blown free-reed bamboo wind instrument with a small brass or cane reed near the mouthpiece, used in the folk music of the Dai and Yi ethnic groups, Chinese folk music and classical music.

bayan
Russia, Ukraine, Belarus a sophisticated chromatic button free-reed accordion, used in virtuoso classical, contemporary, and professional folk music performance.

bullroarer
Australia, New Zealand, Papua New Guinea, Worldwide a flat, elongated piece of wood or bone attached to a cord that produces a low, whirring sound when swung, typically used in ritual, ceremonial communication, and signaling contexts.
cajun accordion

United States (Louisiana) a small, four-stop, one-row diatonic button accordion, used in Cajun dance music and Zydeco music.
claviola

Germany, Italy, United States, United Kingdom a handheld, wind-blown free-reed keyboard instrument, used in folk music, modern jazz, avant-garde ensembles, experimental, and chamber music.

concertina
Germany, United Kingdom, Ireland, United States, South Africa a portable, bellows-driven free-reed instrument with buttons on both ends, used in folk dance accompaniment, folk ensemble performances, and maritime sea shanties.

durspel
Sweden, Norway, Finland a small, diatonic button accordion, used in traditional folk tunes, social dances, and communal tavern singing.

harmonetta
Germany, France, United States, Bulgaria a mouth-blown free-reed instrument with a grid of 32 hexagonal buttons, used in jazz, folk, and classical music.
harmonica

United States a mouth-blown free-reed instrument played by blowing or drawing air through its reeds, used in blues, folk, rock, and country music.

harmonium
India, Pakistan, Nepal, Bangladesh a free-reed keyboard instrument that produces sound as air from hand- or foot-operated bellows vibrates metal tongues, used in devotional chanting, folk songs, and various classical traditions.
heligonka

Czech Republic, Slovakia, Poland, Slovenia a button accordion with enhanced bass reeds that produce "tuba-like" sound, used in folk dances, weddings, and tavern songs.

hulusi
China, Myanmar, Vietnam a free-reed wind instrument with three bamboo pipes attached to a dried gourd windchest, used in traditional and contemporary music ensembles.
khaen

Laos, Thailand a large, free-reed mouth organ made of bamboo tubes of varying lengths, connected by a small wooden air chamber, used in Molam (a style of rhythmic, improvised singing), storytelling, and folk dances in the Mekong region.
lusheng

China, Laos, Vietnam a free-reed mouth organ with 5 or 6 bamboo pipes each containing a small, vibrating bronze reed at its base inside a wooden windchest, and a long, protruding wooden pipe used as a mouthpiece, used for courtship rituals, circle dances, and harvest celebration.
melodica

Japan, United Kingdom, United States a portable, free-reed wind instrument with a piano-style keyboard and a mouthpiece, used in music education, reggae, dub, and various pop genres.
organetto

Italy a compact, bisonoric instrument that differs from other accordions by its limited diatonic scale, a reduced number of bass buttons (often only two to four), and a "tremolo" tuning that produces a sharp, rhythmic pulse specifically designed for fast-paced, traditional village dances like the Saltarello and the Tarantella.
pipe organ

Germany, France, Italy, United Kingdom, United States, Netherlands, Canada, Belgium, Macau a massive, complex keyboard wind instrument that makes sound by driving pressurized air through thousands of individual pipes, controlled by multiple keyboards and foot pedals. It is often called the "King of Instruments", used in sacred music, classical orchestral performances, and solo classical music

pump organ
United States, Germany, France, United Kingdom The pump organ is a piano-style keyboard instrument that uses foot-operated bellows to pump through metal reeds to make sound, used in folk, gospel, and early popular music (Victorian-era parlor music).
qeej

Laos, Vietnam a free-reed mouth organ with multiple bamboo pipes fitted into a wooden air chamber, used to communicate tonal language during funeral rites, weddings, and cultural festivals.
regal

United Kingdom, Italy, Germany, France, Austria, Spain a small, portable pipe organ with one or more ranks of short, metallic reed pipes, used for accompanying vocal music, and in Renaissance and early Baroque ensembles.

schwyzerörgeli
Switzerland a diatonic button accordion with an ornate wooden casing and unique internal reed setup ("bisonoric," meaning a single button produces a different note depending on whether you are pushing or pulling the bellows), used in Swiss folk music (Ländlermusik) and considered a pillar of Swiss national identity.

sheng
China a mouth-blown polyphonic free-reed instrument made of vertical bamboo pipes of varying lengths set into a wind chest, used in ritual and court music, Chinese orchestras(Minzu Yuetuan), and huida (wind and percussion) ensembles used for weddings and funerals

shō
Japan a free-reed mouth organ consisting of multiple bamboo pipes, used to play sustained chord clusters in gagaku (court music).

shruti box
India, Bangladesh, Nepal, Pakistan a small, bellows-operated free-reed instrument, used to produce a sustained harmonic drone as a pitch reference in Indian classical music and devotional singing.

sompoton
Malaysia, Brunei a free-reed mouth organ made from a dried gourd and several bamboo pipes, used in personal entertainment or to accompany traditional dance and celebrations.
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