The biwa (Japanese: 琵琶) is a Japanese short-necked wooden lute traditionally used in narrative storytelling. The biwa is a plucked string instrument that first gained popularity in China before spreading throughout East Asia, eventually reaching Japan sometime during the Nara period (710–794).
Typically 60 centimetres (24 in) to 106 centimetres (42 in) in length, the instrument is constructed of a water drop–shaped body with a short neck, typically with four (though sometimes five) strings.
