Tàn Máng is musical instrument of chordophonic family, plucking branch of Mường minority. The appearance of Tàn máng is nearly the same to the monochord of Viet majority, but its structure is more simple. It consists of 4 components, including body (resonator), spout, string and tuning peg.
The body also called resonator is made from a bamboo tube separated the outer layer, and of 143 cm length, 14 cm diameter. A apart of surface bamboo tube is cut to make a escape sound hole. A section bamboo of 36 cm length called spout is located on the heading part. The spout functions to produce the extra sounds besides the main sounds. The tuning peg is made from a bamboo of 30 cm length, located at the ending part of Tàn Máng. String is made from silk (today, it is replaced with metal string). The string runs along the body, its one end is pass through a small hole then thread with the tuning peg, while the other is bound with the spout. At front of the hole passing through the string a small wooden piece is fixed to make the bridge.
Tadn Máng has register of 3 octaves.
- The first octave: The sounds are soft, warm and deep.
- The second: The sounds are clear, lyrical.
- The third: Expresses the tense mood, the sounds are sharp and dry, less vibrated, so not being used frequently.
When performing, instrumentalist takes stick with her/his right fingers to pluck the string. At the same time with plucking string, her/his left hand control the spout to create different sounds with the techniques such as vibrating, accent, clapping, glissando...
Tan mang is played as solo or ensemble in daily activities of Mường minority.