barrel organ
US /ˈbær.əl ˌɔːr.ɡən/
UK /ˈbær.əl ˌɔːr.ɡən/

1.
organetto
a mechanical musical instrument that plays tunes by means of pins on a revolving barrel, which open valves to allow air from bellows to sound the pipes.
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The old man played a cheerful tune on his barrel organ.
Il vecchio suonava una melodia allegra sul suo organetto.
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A street performer entertained the crowd with his antique barrel organ.
Un artista di strada ha intrattenuto la folla con il suo organetto antico.