/ ˈbærəl ɔ:gən /
grind organ · hand organ · hurdy gurdy · street organ
Makes music by rotation of a cylinder studded with pegs; SYN. grind organ, hand organ, hurdy gurdy, street organ.
Portable pipe organ, played by turning a handle. The handle works a pump and drives a replaceable cylinder upon which music is embossed as a pattern of ridges controlling the passage of air to the pipes. It is often confused with the barrel or street piano used by buskers, which employed a barrel-and-pin mechanism to control a piano hammer action.