Đàn đáy

The đàn đáy (Chữ Nôm: 彈𡌠)is a Vietnamese plucked lute with three strings, a trapezoidal wooden body, and a very long wooden neck with ten raised frets.

[1][2] It is used primarily in Northern Vietnam, and is one of the accompanying instruments used in ca trù.

[3] In the late 20th century, a modernized version of the electric bass guitar in the shape of the đàn đáy was developed for use in the neo-traditional music composed and performed at the Hanoi Conservatory.

Unlike the đàn đáy, this instrument has a solid wooden body and metal strings, and without raised frets.

In the Vietnamese language, đàn is a classifier used primarily to refer to string instruments, and đáy means "bottom."