Piano (also known as pianola) is a self-playing piano, containing a pneumatic or electro-mechanical mechanism that operates the piano action via pre-programmed musicrecorded on perforated paper, or in rare instances, metallic rolls, with mor

Stock photo: Piano (also known as pianola) is a self-playing piano, containing a pneumatic or electro-mechanical mechanism that operates the piano action via pre-programmed musicrecorded on perforated paper, or in rare instances, metallic rolls, with mor was taken by manoj.kumar50 .