Ca Trù: Sung Poetry, Bamboo Tallies and a Drum That Talks Back

A ca trù evening has only three people at its centre, and one of them is in the audience. A woman sits on a mat with a small bamboo block in front of her and two wooden sticks in her hands. Beside her, a man holds a lute with an absurdly long neck and three strings. Facing them, a little apart, sits a third person with a small drum. When the singer lands a line especially well, he answers with a crisp chát on the drum’s rim. When she falters, he can say that too.

That drum is the whole idea of ca trù in one object. This is not music performed at listeners. It is a conversation between a singer, a musician and someone who knows the poetry well enough to judge it in real time.

What ca trù is

Ca trù is sung poetry from northern Việt Nam. The texts are in traditional Vietnamese verse forms, and the music exists to carry the words, not to decorate them. UNESCO, which inscribed it in 2009 on its List of Intangible Cultural Heritage in Need of Urgent Safeguarding, describes the core ensemble the same way it has looked for centuries:

the singer (đào nương or ca nương), who keeps time with the phách — wooden sticks beaten on a small bamboo or wooden block — while using a distinctive breath control and vibrato;
the đàn đáy, a long-necked, three-stringed lute played by a man, an instrument used almost nowhere else;
the trống chầu, the “praise drum,” struck by the connoisseur-listener, the quan viên.

The repertoire runs to 56 forms, or thể cách. Some were sung in village communal houses as offerings to the guardian spirits (hát cửa đình); some were court pieces; some were competitions; and some were simply entertainment for educated men who liked their poetry sung.

The name: a bamboo tally

Trù is a Sino-Vietnamese word for a bamboo tally card, and ca trù means, roughly, “tally-card singing.” In the old village performances, the host struck the drum to signal approval, and with each signal an assistant dropped a long bamboo card — inscribed with Phúc – Lộc – Thọ on one side and its value on the other — into a brass tray. At the end, the troupe leader counted the cards and the village paid accordingly. Accounts from Lỗ Khê, one of the craft’s ancestral villages, say the troupes never haggled over money: the drum and the cards did the accounting. Individual guests who wanted to show extra appreciation tipped in cash.

The genre’s older name is hát ả đào. Tradition links it to a singer named Đào Thị at the Lý court, whose name became a title for female singers. That is a legend, one of several explanations, and should be read as one.

Ancestors and villages

Practitioners officially date their profession to the Later Lê dynasty (from 1428), and several villages claim the founding story. In Lỗ Khê (Đông Anh, Hà Nội), the temple genealogy says the ancestor was Đinh Dự, son of the Lam Sơn general Đinh Lễ, who with his wife ran a school of singing and music. In Cổ Đạm (Nghi Xuân, Hà Tĩnh), the legend features Đinh Lễ himself, whose lute playing made a mute mandarin’s daughter speak. The two versions don’t agree on the details, which is normal for founding stories. What matters is that villages still hold ancestor ceremonies where guild descendants gather to sing at the temple doors.

Hát nói: poetry made to be sung

The form that made ca trù a literary art is hát nói, a verse structure used almost only for ca trù. Its golden age was the nineteenth century, when scholar-poets such as Nguyễn Công Trứ, Cao Bá Quát, Dương Khuê and Nguyễn Khuyến wrote for it. For Nguyễn Công Trứ in particular, hát nói was where a Confucian mandarin could write about wine, freedom and his own ambition with a looseness that formal poetry did not allow. A good quan viên had to know these texts: the drum strokes mark the structure of the poem, and a stroke in the wrong place gave away an ignorant listener.

From singing houses to near-silence

In the early twentieth century ca trù moved into the cities. Hà Nội’s singing houses (ca quán, popularly nhà hát cô đầu) were where writers such as Nguyễn Tuân, Thạch Lam and Nhất Linh spent their evenings. But the houses also drifted toward drinking and paid companionship, and that reputation proved fatal. After 1945, ca trù was discouraged as decadent and associated with prostitution and “feudal” leisure. For decades it was barely performed in public.

By the 1970s only a handful of true masters were left. The most celebrated was Quách Thị Hồ (1909–2001), born into a ca trù family, singing in guild performances from the age of six and famous in Hà Nội by fifteen. The musicologist Trần Văn Khê recorded her in 1976, and those recordings — later issued abroad — helped persuade both scholars and officials that something irreplaceable was about to disappear.

Revival, with caveats

Revival began in earnest in the 1990s and 2000s. Lỗ Khê set up a village club in 1995; Hà Nội now has several groups, and clubs exist across the northern and north-central provinces. After the 2009 UNESCO listing, the state organised national festivals and supported teaching in schools.

The heritage file is honest about what remains fragile, though. The masters are old, the training is long and hard, and singers can rarely live on it — a Lỗ Khê leader admitted that even the best performers “cannot make a living from ca trù.” There is a quieter problem too: the true quan viên, the expert listener who drives the performance, has nearly vanished. Many modern performances have the musicians striking the drum themselves, because the audience no longer knows how.

If you go to a ca trù evening in Hà Nội, sit close. Watch the singer’s hands on the phách, listen for the lute’s dry, low reply, and pay attention to the drum. In a good performance, you will hear the oldest form of Vietnamese criticism: one beat, exactly when it’s earned.