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口弦是苗族艺人用薄铜片打制成的一种乐器。它由弦柄、弦叶两部分组成。长约4厘米的口弦,叶片约长10厘米,宽2厘米,比弦柄略长、略宽和略薄一些。叶片中间还有一块小簧片。吹奏时,左手拇指和食指捏住弦柄,然后将弦叶部分横过来靠近嘴唇,通过舌尖的动作将气流轻轻送出嘴唇,吹动弦片。此时,右手拇指也要拨动弦片,悠扬婉转的弦声就响起来了。拨片时,气的轻重和气流的大小,直接影响着弦声。
Chord string is a musical instrument made by Miao artists with thin copper plates. It consists of string handle, chord two parts. About 4 cm long string mouth, about 10 cm long leaves, 2 cm wide, slightly longer than the chord, slightly wider and slightly thinner. There is also a small leaf reed in the middle. Playing, the left thumb and index finger pinch the string handle, and then the string part of the cross to close to the lips, the tip of the tongue through the action of the air gently lips, blowing strings. At this point, the right thumb also have to dial the strings, melodious polite ring sounded. Plectrum, the severity of gas and the size of the air stream, a direct impact on the chord sound.