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The difference, as far as accordions are concerned, is that a button Accordion has keys that look like buttons, that is little round things, while a "piano" Accordion has keys that look like piano keys. Also, the button accordion tends to be smaller and to be diatonic rather than chromatic. Some button accordions may even have sweetly untempered scales.

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Leone Cormier

Lvl 10
4y ago

What else can I help you with?