Yamaha musical instrument brand is good. Lacrimal duct is a wind instrument with a long history. The pipe originated in ancient Persia. During the Western Han Dynasty more than 2,000 years ago, the pipe became a common musical instrument in Xinjiang, China, and was later introduced to the Central Plains. In ancient China, a pipe was called a reed pipe, and its structure consisted of three parts: a pipe whistle, an intruder and a cylindrical pipe body. Can be used for solo, ensemble and accompaniment. There are three kinds of pipes: large, medium and small. The small tube is also called treble, the middle tube is eight degrees lower than the small tube, and the big tube is also called bassoon tube, which is eight degrees lower than the middle tube. Small tube whistle is made of reed, one end is tied with thin steel wire, the other end is flattened, and it is directly inserted into the upper end of the tube body, with high pronunciation; The big pipe whistle is made of Arundo donax and inserted on the intruder. The invader is made of copper and is tapered, and inserted into the upper end of the pipe body. Guanzi is used in folk instrumental ensemble, such as Hebei Blowing Song, Jidong Noisy Society, Shaanxi Badatao, xi 'an Drum Music, National Band, Traditional Opera Band and Religious Music. Hebei blowing songs with large pipes and small pipes, sonorous and bright, to show a lively and warm melody; Basong's timbre is deep, rich and slightly sad, and he is good at lyrical description.