Pipa - Chinese plucked lute

"The pipa is a four-stringed Chinese musical instrument, belonging to the plucked category of instruments. Sometimes called the Chinese lute, the instrument has a pear-shaped wooden body with a varying number of frets ranging from 12 to 26. Another Chinese four-string plucked lute is the liuqin, which looks like a smaller version of the pipa. The pear-shaped instrument may have existed in China as early as the Han dynasty, and although historically the term pipa was once used to refer to a variety of plucked chordophones, its usage since the Song dynasty refers exclusively to the pear-shaped instrument. - Wikipedia"