Vietnam has fifty national music instruments, in which the set of percussion instruments is the most popular and diverse. Vietnamese folksongs are rich in forms and melodies of regions from across the country, ranging from reciting poems, lullabies, and chanting. Traditional performing arts include cheo and tuong. Water-puppet shows are also a special traditional art that was ignited in the Ly dynasty. At the start of the 20th century, cai luong (reformed theatre) appeared in Cochinchina with melodies of ‘vong co’. The Vietnamese acoustic arts generally have symbolic, expressive and emotional features. Traditional stage performances relate closely to the audience in its combination of music and dance forms. Dance is an elegant affair and rarely filled with hard or rough movements, preferring the grace and sway of arms and body movements.