It is named after the accompaniment of Kunqu opera. It is also called class flute, city flute or tie-line (i.e. silk-wrapped) flute. Because it is popular in Suzhou, it is also called "Su flute". This kind of flute is mostly in the key of D or C or even B flat. The tube body is thick and long. It may be a legacy of the great horizontal flute. The tone is rich and soft, fresh and mellow. Widely popular throughout southern China, it is most suitable for solo or ensemble playing. It is one of the distinctive and important instruments in local music such as Jiangnan Sizhu, Sunan Chuipa, Chaozhou Flute Set, Gong and Drum, and opera music such as Kunqu Opera.

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Qudi performance

Bangdi

It is named after its accompaniment to Bangzi opera. This kind of flute is usually divided into: bangdi in F key, bangdi in G key, and bangdi in A key. The pipe body is thinner and shorter than the curved flute, and may be a legacy of the small horizontal flute. The sound is high-pitched and bright. It is a kind of flute used for playing high notes. It is mainly popular in the north. It is mostly used as accompaniment for northern singing performances, Pingju opera and Bangzi opera (Qinqiang Opera, Hebei Bangzi, Pu Opera, etc.). It can also be used for solo solos, with a rich and rich sound. The local flavor and local color.

Fixed-tone flutes

Each flute has a fixed tune, and each set has 6, 7 or 12 pieces. It is suitable for playing music in different tones and is most suitable for solo or band performance. It brings convenience to the player, who can keep the fingering and only use the flute corresponding to the music to play. The fixed-tone flute is equipped with a copper socket between the blow hole and the sound hole of the flute body to adjust the distance between the blow hole and the sound hole. This improved tuning flute can control the pitch by adjusting the tube length under different climate conditions. The fixed-tone flute will play a positive role in unifying the names of Chinese bamboo flutes, because it is no longer divided into curved flute and bangdi, but is named after the pitch of the third hole. This is not only in line with traditional folk playing habits, but also solves the problem of The flute solves the problem of tuning up, and brings great convenience to notation and performance. It is fully applicable to the traditional six-hole flute and various reformed flutes.

Yuping Flute

Made in Yuping Dong Autonomous County, Guizhou. Made from local small water bamboo. The body of the flute is oval, and its surface is engraved with images of landscapes, flowers, plants, birds, animals, insects, fish, or poems, with exquisite craftsmanship. The pair of male and female flutes is more famous. The male flute has a slightly thicker tube with "Tenglong" engraved on it; the female flute has a slightly thinner tube with bright pronunciation and "Colorful Wind" engraved on it. This kind of dragon and phoenix playing flute is quite unique in its craftsmanship.