How does a button accordion work?
The press of a button or key opens a valve to allow air to pass through the reed or reeds to make a sound when the bellows are pumped in or out. In the diatonic button accordion, reeds are fixed in pairs so that one note sounds when air moves in, and a different one when air moves out.
Is it hard to play a button accordion?
The button accordion is easier to play because the buttons are smaller and use fewer keys for notes, unlike the piano accordion that uses one key for each note. ... The piano accordion usually has between 25 and 45 piano style treble keys on the right hand and each key plays a specific note.