Button accordion
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A button accordion is a type of accordion on which the melody-side keyboard consists of a series of buttons. This differs from the piano accordion, which has piano-style keys. Erich von Hornbostel and
Diatonic button accordion (German make, early 20th century)
One-row diatonic button accordion
Three-row diatonic button accordion
Three-row chromatic button accordion
Diatonic button accordion
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A melodeon or diatonic button accordion is a member of the free-reed aerophone family of musical instruments. It is a type of button accordion on which the melody-side keyboard contains one or more ro
Button accordion
…Button accordions are found with a wide variety of keyboard systems, tuning, action, and construction. The diatonic button accordion is bisonoric, meaning when a button is pressed, the note sounded changes depending on whether the bellows are being expanded or contracted. This is…
Accordéon diatonique
Three-row button accordion with 12 bass buttons
1950s two-row instrument in C♯/D by the Paolo Soprani company, of the type favoured by Irish musicians; grey celluloid finish.