Ca trù is inscribed on the list of Intangible Cultural Heritage in need of Urgent Safeguarding in 2009.

Ca trù literally translates as "tally card songs." This refers to the bamboo cards men bought when they visited ca trù inns, where this music was most often performed in the past. Men would give the bamboo cards they purchased to the woman of choice after her performance, and she would collect money based upon how many cards she was given.

Scholar-bureaucrats and other members of the elite most enjoyed this genre. They often visited these inns to be entertained by the talented young women, who did not only sing, but with their knowledge of poetry and the arts could strike up a witty conversation along with serving food and drink.

Besides these inns, ca trù was also commonly performed in communal houses or private homes.