It's a long story I am a huge fan of Mr. Xi, and I want to know about his art world. I learned a little from some music friends. Around 1989, Zhao Songting began to develop the bent bass flute, which was successfully developed in 199 1 year. As early as 1988, Xi Xiaolin (First Communication) came to Hangzhou to visit Mr. Zhao Songting. Teacher Zhao's bright smile and amiable attitude make Xi Xiaolin feel like a spring breeze. In fact, I'm glad you came. He offered Mr. Zhao a visit to Normal University, and Mr. Zhao began to politely refuse. On the third day, Xi Xiaolin took out a homemade flute with a rough appearance. & lt Morning >> (Zhao Lao didn't know beforehand that Xi Xiaolin had been developing bamboo flutes and cave flutes for many years since 1974), so he asked Mr. Zhao Songting to teach him. Zhao Lao first affirmed the basic skills of Xi Xiaolin's flute, but he was more interested in his homemade flute with rough shape, so Xi Xiaolin invited Mr. Zhao and one of his students to a small shop, fired several hangzhou dishes, and had dinner together. Mr. Zhao found his words congenial and praised Mr. Wang for his knowledge. When he was happy, he inadvertently said, "With such an apprentice, China will have no worries about flute and flute innovation." When Xi Xiaolin heard this, he immediately got up and knelt down. Zhao Songting helped him up and said with a helpless smile, "You apprentice, you can't stand it today!" Xi Xiaolin then shouted "Master, Master, Master!" Zhao Songting also answered three sentences "good-,good-,good!" . Since then, the relationship between Zhao Songting and Xi Xiaolin has been formally established. Of course, I can't remember some of the rules of mentoring ... 199 1 year, Xi Xiaolin visited Master Zhao Songting (he went to see him personally every year) and saw the elbow bass flute just developed by the master. The master had a general understanding of the principle. This paper mainly discusses the influence of elbow on column vibration, timbre and membrane sound, as well as on octave interval. ,,,, 1992, the first big e-curved flute made by Xi Xiaolin, this octave is not accurate. 1993, the second big e-curved flute made by Xi Xiaolin, the index is good ...,,, This is the process.