According to the census data of 2009, the Thái ethnic minority in Vietnam had a population of about 1.5 million people, making them the third populous group in Vietnam, mostly residing in Sơn La and Điện Biên provinces. Thái people have a rich treasure of folk culture such as myths, poems, hát khắp folk songs, xòe dance, and bamboo pole dance. The tính tẩu is a typical musical instrument of Thái people. The tính tẩu is used to accompany the ritual singing, especially in the Then ceremony of the ethnic minorities like the Thái, Tày, and Nùng. In addition, the tính tẩu is also used to accompany love-exchange songs and the xòe dance of Thái people. The tính tẩu is a plucked stringed instrument made up of a head, neck, resonator, surface, bridge, and strings. The neck and the head are made of a piece of wood with a total length of about eighty to ninety centimeters. There are two tuning pegs. The round and thick resonator is made from the cover of an old gourd. The instrument surface is covered with bamboo. The bridge is a piece of bamboo with grooves for the strings to fall into. The tính tẩu has between two and three strings depending on each region and on musical functions.

According to statistics data in 2009, the Hmông people in Vietnam had a population of over one million people, making them one of the larger ethnic minorities in northern Vietnam. The Hmông reside mostly in the provinces of Hà Giang and Lào Cai. They have diverse folk music and folksongs. The khèn (or also known as kềnh) is an aerophonic instrument made up of six bamboo tubes of different lengths. These tubes are put through a wooden resonator. The upper part of resonator is small, connecting to another bamboo section that forms a blowing pipe. A small bronze reed is attached at the part put through the wooden resonator on each horizontal bamboo tube. The shortest and the longest bamboo tubes have two parallel reeds, producing unison sound. Pressing holes are outside the resonator. The player covers the pressing hole of the section and then blows air into it to make the reed vibrate and produce sound. Each tube creates a different sound depending on the length and size. The Hmông playing and pressing techniques include clapping, tremolo, and staccato as well as simultaneity, chord, and harmony. Kềnh of the Hmông people is a polyphony instrument with a bit cracked sound. The register of Kềnh is about an octave. The Hmông people blow the Kềnh during entertainment activities, at funerals, or on the way to the market. Traditionally, the instrument is only for men to accompany singing.