= Barrel piano
{wiki=Barrel_piano}
A barrel piano, also known as a barrel organ or hand-cranked music box, is a type of mechanical musical instrument that plays music automatically. It typically consists of a cylindrical barrel with a series of pins or pins that strike tuned metal plates or bells when the barrel is turned or cranked. The barrel is often made of wood and is mounted on a frame that may include a mechanism for turning the barrel, which can be operated manually or by a pedal.
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