Chèo – Vietnamese traditional stage art in Ninh Bình province\nTraditionally, musicians had to use drums and small wooden sticks used to beat a small bamboo box for percussion (phách) to produce instrumental music. In modern Chèo, other traditional musical instruments are used to enrich the accompaniment including a flute, a moon – shaped lute (đàn nguyệt), a two – string violin (đàn nhị), a one – string chord (đàn bầu), three – string chord (đàn tam) and so on to depict character expressions in various situations. \n \nAny Chèo play or excerpt has to use string musical instruments of all kinds including đàn bầu, đàn tam, đàn tứ, đàn nhị (đàn nhị 1 and đàn nhị 2) simultanously and drums are indispensable.\n