According to statistics data in 2009, the Cao Lan people (known as Sán Chay) in Vietnam had a population of 169,410 people, residing mostly in Tuyên Quang province. The Cao Lan ethnic minority has a treasure of poetry, folk music, and dance such as sình ca (unique folk singing), múa trống (drum dancing), múa xúc tép (small shrimp catching dancing), múa chim gâu (cuckoo bird dancing), etc. The musical instruments of Cao Lan people are various, including thanh la (small knobless gong), não bạt (small cymbals), drums, bells, and wind instruments. Kèn is a wind instrument performed in festivals and ritual forms. Kèn consists of four parts: the body, the bell, reed stake, and the reed. The body is a cylindrical hollow tube made of hard wood about thirty centimeters in length. On the body, there are seven pressing holes on the front and one hole on back near the stake. The instrument bell is made of a frustum-shaped thin wooden piece. The smaller of the bell is attached to the big end of the tube. The stake is attached to the small end of the tube. The reed is made of a reed pipe or worn nest attached to the stake. Its sound is strong, a little discordant at high pitches and a little cracked at the low end. The register of the instrument is two octaves. Kèn is played by men only. This track is a medley of extractions that are often played in the rituals, such as hành quân (army operation), kèn Khắp, and đưa Phật (Buddha greeting).

This song includes two melodies Nam xuân (twenty phrases) and Nam ai (twenty-eight phrases). Nam xuân, Nam ai are two out of three Nam pieces belonging to the twenty principle pieces. The piece takes on melancholic and deliberate characteristics. This musical piece is played by the bầu (monochord), the kìm (moon-shaped lute), and the violin. The bầu, a plucked string instrument made of wood, has a long rectangular resonator. A small arm made of bamboo or plastic is put through a gourd cover and attached to the resonator. At the end of the resonator, a metal or wooden peg is attached. The instrument has a metal string and has no frets. When playing the monochord, the musician creates overtones by lightly pressing the nodal points along the metal string. The violin is a western instrument that has some modifications to its strings when being used in Tài tử orchestra. For information about the kìm, please refer to the description for track 2.

B’roh is a plucked cordophonic instrument made of six parts: the resonator, body, frets, strings, tuning pegs, and gauge. The resonator is made of a dry gourd that is cut on its two ends. The big end usually has the diameter of over ten centimeters, and the other has a diameter of five centimeters. Its body is made of a bamboo section with the length of one meter and a diameter of about eifht centimeters. Small wooden pieces are fixed to one end of the body as the gauge and to the other end as tuning pegs. The body has four or fie frets. B’roh includes two strings, which are tuned to the fifth interval. One of them is used to play drone part, and the other is used to play melodic part. The b’roh is for only the male. The instrumentalist puts this instrument in front of him and plays it while sitting. He wears a bamboo nail on his right forefinger to pluck strings while his left fingers press the frets. At the same time, the instrumentalist covers or opens the big end of the resonator with his stomach to enrich sounds. The ambitus of the b’roh is wide, about two octaves at mediant register.

O think of the nailed wooden boards\nOr the shaking bamboo bridge that's hard to walk on\nIf it's hard to pass then mother is here to lead\nYou're on the path to school, I'm on the path of life\n\nLullabies (Ru) within the family environment has a hypnotising function, where it's used to ease the child into sleeping. Southern Vietnam (Nam bộ) lullabies was formed and sustained through the many layers of Nam bộ culture. The environmental ecosystem and culture have given it a distinctive form that is expressed through lyrics, melodies, and rhytms.

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.