Here are three examples of standard piano accordions.
I've got a larger one over here that's got various reed settings on it that change all the sound of these keys. And then over here another big accordion that also has reed settings that can change the sound.
I'll show you how to do that on this accordion. Again, set up like a piano in a chromatic way. And what's really cool about the reeds is you can change the sound. It means it passes over a different part of the instrument with air inside.
That's what's called the master setting. This is what's called the clarinet setting. The top setting on most all accordions.
So, on a piano accordion you can really change the color of the sound by playing with these reeds. All just with a switch of a button.