Hat van, or hat chau van, is a traditional folk art which combines trance singing and dancing, a religious form of art used for extolling the merits of beneficent deities or deified national heroes.
Its music and poetry are mingled with a variety of rhythms, pauses, tempos, stresses and pitches.
It is in essence a cantillation where the tunes and rhythm depend on the contents of the sung text and may be linked together into a suite, used in relation to a mythical happening, with hints at some features of modern life.
The art of hat van originated in the Red River delta and dates back to the 16th century, spreading later to the whole of the country. During its development course, hat van has taken in the essential beauty of folk songs from regions in the north, the centre and the south.