How to Distinguish Different Types of

Accordions?

Button Accordions

If the right hand, or treble side, is made up of buttons, then the accordion is a button accordion.

Piano Accordions

If the right hand, or treble, side of the accordion is made up of black and white piano keys, then it’s a piano accordion.

Unisonoric Accordions

A key or button on a unisonoric accordions produce the same pitch regardless of the direction of the bellow action.

Bisonoric Accordions When depressing one button on a bisonoric accordions two different notes can be played–one note when the bellows is pulled out, and another, different note when the bellows is pushed in.

Diatonic Button Accordions Most of the diatonic button accordions are button accordions with 2-3 rows of buttons and bisonoric. Because diatonic button accordions are generally only in one (or two) key(s), players need several instruments to play in different keys

Chromatic Button Accordions Most of the diatonic button accordions are button accordions with 2-3 rows of buttons and bisonoric. Because diatonic button accordions are generally only in one (or two) key(s), players need several instruments to play in different keys

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