Piano accordion

Rarity: Common

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Notion

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Science and technology

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What Wikipedia says

A piano accordion is an accordion equipped with a right-hand keyboard similar to a piano or organ. Its acoustic mechanism is more that of an organ than a piano, as they are both aerophones, but the term "piano accordion"—coined by Guido Deiro in 1910—has remained the popular name.

Excerpt from the Wikipedia article “Piano accordion”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Creator:Borsini, CC BY-SA 3.0, via Wikimedia Commons.