The đinh tác ta is an aerophonic instrument made of a hornless bamboo section put through a dry gourd. At the hornless bamboo part inside the gourd, there is a bamboo reed. The rest of the bamboo part has three pressing holes. When playing, the instrumentalist holds the knob of the gourd in his mouth while his left thumb covers or opens the other end. His right thumb, forefinger, and middle finger press the three holes on the section. Đinh tác ta’s timbre is loud and clear. Only men play this instrument in the fields or on the roads; it is rarely performed in the village.

If you ever pass the empty lands of Giồng Dứa \nWhere the winds blow the reed, much like my sorrows

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.

Ng’ngốc is the name of the Mnông ethnic minority, referring to the Jew’s harp. Ng’ngốc is a thin bamboo piece with two crossing lines cut in the middle to create two sides of an isosceles triangle. The bottom side is located at the instrument body. This triangle is the reed of this instrument. T he performer puts this instrument between his two lips without touching his teeth. His left hand keeps this instrument steady, and the right one shakes the instrument very slightly to create sounds inside his mouth. Changing the shape of his mouth will create some overtones, different from the sound created by the reed. The sound from this instrument is soft and slightly cracked.

This song was sung in twinning ceremonies or festivals. The instrument, accompanying this song, is nung pa bil, a wind instrument with a reed. Nung pa bil is made of a hornless bamboo section with the length of thirty centimeters. One end with a reed with the length of two centimeters is separated from the section. On its body are seven holes drilled two centimeters from each other. Only men play this instrument.

Đing buốt is an aerophonic instruments. It is a vertical flute with reed. The flute has four pressing holes on the body and one blowing hole before the reed. From the hole before the reed to the first pressing hole on the body is a distance of one span. Đing buốt is for only the male and performed solo or to accompany singing. It can be used to play musical pieces with fast tempo and flexibly play finger techniques such as tongue, vibrating, trill, etc. Đing buốt can be played everywhere, in the field, on the road, or in love-exchanges. However, there are also strict taboos on the repertoire; for example the piece “Crying wife” is never performed on weekdays.

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).

Ala flute is an aerophonic instrument, free-vibrated reed branch. Ala flute is made of a hornless bamboo section with two open ends, fifty centimeters in length and two centimeters in diameter. A small hole is pierced at one end to attach a rectangular box with reed. Three pressing holes in a straight line but slanted an angle of 90˚ toward the box with reed are pierced at the other end. Ala flute is played in daily activities and usually played as solo or to accompany love-exchange singing. In performance, the players hold the full reed part in his/her mouth. Different from the aerophonic instruments, players inhale to play ala flute. When inhaling, the thumb of the right hand is used to open and cover one end of the sections, the fingers of the left hand are used to press the three pressing holes as playing common flutes. The ambitus of the ala flute is an octave.

I met a group of nomads leading simple lives in Ushar village of mountainous Boysun. This is a recording of the music shepherds play on reed pipes while herding their sheep.