The accordion is a portable wind instrument consisting of two reed organs connected by a folding bellows. Expanding and contracting the bellows provides air to vibrate the reed organs producing the sounds.

The piano keys on an accordion are called melody keys.

The folds of an accordion are called bellows.

This is a piano accordion, and the buttons are arranged according to the Stradella bass system.

These keys affect bass and cords. Never push or pull an accordion unless a key is pressed or the air valve is on. It can damage the reed in the accordion.

The straps allow you to wear the accordion with it resting on your stomach.