Mechanical organ

A mechanical organ is a self-playing instrument, as opposed to manual playing by a musician. These organs are traditionally powered by a single shaft, located at the side of the organ case. The axle is attached to a wheel, which can be powered from a variety of sources. Common ones include hand-cranking, electric motors, and steam engines.

Mechanical organs produce sound using an abundance of different methods. Some instruments utilize a set of reeds, similar to those found in a harmonium or reed organ.