After the founding of New China, the Balangzi Kum was reformed, and the folk musicians of the Tashkurgan Tajik Autonomous County Cultural Troupe made the reformed Balangz Kum on the basis of the traditional Balangz Kum.

The traditional Balangzi kumu is composed of a sound box, a headstock, a piano rod, a peg, a bridge and a string.

body
Made from a single piece of apricot wood, with a total length of 92 cm.

sound box
It is in the shape of a flat gourd, and the upper part is connected to a wider piano rod. There are 6 to 9 small circular sound holes on it, and some sound holes are assembled into various patterns. similar ornaments.

sound box
The lower part is in the shape of a flat scoop, covered with yak, sheep, horse or donkey skin, with a diameter of 24 cm. The headstock part is curved backward in a semicircle, and there is a string groove in the middle, which is not transparent. The six pegs are arranged on both sides (three on each side). The piano bar is long, accounting for about 3/4 of the length of the piano, narrow at the top and wide at the bottom. The front is straight and is a fretboard without frets. The back of the bar is arc-shaped, and there is a Treble pegs. Wooden bridge-shaped bridge, placed in the middle of the piano surface. There are strings attached to the bottom of the violin. Zhang has seven strings. In the past, he mostly used gut strings, but later changed to silk strings.

body
Apricot wood, total length 82 cm. The resonance box is in the shape of a flat gourd. The two sides of the connection between the piano bar and the piano box are no longer decorated with eagle wings. The upper part of the piano box is connected to the piano bar that is narrow at the top and wide at the bottom, and the lower half is in the shape of a flat scoop. Shaped, the front is covered with yak or sheepskin, and the diameter of the face is 22 cm.

headstock
Curved back in a semicircle, nine T-shaped pegs are arranged on both sides (fourth on the left and five on the right).

piano bar
It is shorter and features a treble peg on the left side. A wooden bridge-shaped horse is set, and strings are set at the bottom of the piano.

Zhang ten silk strings, the tuning is: d2, G, C, c, e, e, a, a, d1, d1, the outer string d1 is the main playing string, and the remaining nine are resonance strings. The reformed Balangzikum has been used in ensembles or accompaniment for folk songs and dances in Tajik national bands. With the continuous development of the Tajik national band, the reformed Balangzi Kumding will become a promising Chinese musical instrument.

When playing, the piano is played with the left hand and a wooden pick with the right hand. Two adjacent strings are often set as the same tone, the outer strings are used as the main strings, and the remaining strings are resonance strings.

There are two folk tuning methods, one of which is set as: b1, A, A, e, e, b, b. Another tuning is: #d1, #f, b, b, #f, b, b. The pronunciation is loud and rich, and the timbre is softer and thicker than the hot bup. In the traditional folk funeral music, in addition to one person playing the eagle flute, one playing the eagle flute, one hitting the dab, and the other singing. Due to historical reasons, the number of such musical instruments in the folk is not large, and the scope of use is also small.