What is the ancient "big race" of Nu people?

Although Dabia is known as the pipa, its shape was ancient in the Tang Dynasty, and it had a taste at the beginning of its introduction, but Dabia has no taste so far.

Nu people's favorite traditional musical instrument, shaped like a pipa, oval or triangular, with four strings, crisp and bright timbre and rich expressive force. When young men and women fall in love, they don't talk in words, but play with two instruments of Nu nationality, namely "Dabia" and "Kouxian". Young men often use "big Biya" to express their love for girls, while young women use "oral strings" to answer, and the meaning can be understood from each other's tunes and timbre.

There is a legend circulating in the thatched cottage of Nu nationality: A long time ago, there was an orphan of Nu nationality who lost his parents when he was a child. He has no house or land, and lives alone in a cave in the mountains, and his life is very hard. One day, he found a Huang Sang trunk and hollowed it out to make a big nose. Every night, orphans will play this instrument to relieve loneliness and express their feelings. The crisp sound of the piano touched a hardworking and beautiful girl in the cottage. She went out and married the orphan. Since then, the big ethnic groups have spread among the Nu people. Today, it is still a media tool for young Nu men and women to love at night.