Simple Definition of barrel organ
: a large musical instrument that is played by turning a handle and that was once commonly played by performers (called organ-grinders) on city streets
Full Definition of barrel organ
: an instrument for producing music by the action of a revolving cylinder studded with pegs on a series of valves that admit air from a bellows to a set of pipes
Learn More about barrel organ
Britannica.com: Encyclopedia article about "barrel organ"
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