This information was announced on June 12 by Thua Thien Hue Department of Culture, Sports and Tourism. The recognition aims to preserve and promote artistic values of Hue singing.

Ca Hue is said to bear similar significance to Vietnamese traditional music like don ca tai tu (Southern folk music) and ca tru (ceremonial singing) performed in the north.

Ca Hue music, also known as "the Hue tune", is a variation of Hue royal court music. The music has lyrics with some being Hue folk songs.

Many great Hue songs were composed by the feudal intellectuals who staged these performances in their homes. The artform has a history of nearly 500 years in the former royal capital city.

Ca Hue is always performed on small stands or on floating stages.

Statistics show that over 10,000 Ca Hue shows are held every year for 160,000 people.

At present, 457 singers and instrumentalists were licensed to perform the art along the Huong River.