1.
Button Accordions
If the right hand, or treble side,
is made up of buttons, then the
accordion is a button accordion.

2.
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.

3.
Unisonoric Accordions
A key or button on a unisonoric
accordions produce the same
pitch regardless of the direction
of the bellow action.

4.
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.

5.
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

6.
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

7.
All About Accordions and Concertinas
www.allaboutaccordionsandconcertinas.com
Accordion and Concertina Builder , Dublin, Ireland