續一切經音義 2.193

2.193

箏笛（上側莖反說文云皷絃筑身樂也本大瑟二十七絃秦人無義二子爭父之瑟各得十三絃因名為箏下徒歷反說文笛七孔俗云羗笛即三孔也風俗通云笛滌也言滌邪穢納雅正也又漢武帝時丘仲善作笛也）。

箏笛 (The first character is pronounced 側 + 莖 fanqie. The Shuowen jiezi says: 'A stringed instrument played by plucking, with a body like a zhu.' Originally the great se had twenty-seven strings; unrighteous men of Qin, two sons contesting their father's se, each obtained thirteen strings, hence it was named zheng [contest]. The second character is pronounced 徒 + 歷 fanqie. The Shuowen says: 'The di flute has seven holes.' Popular usage calls the Qiang flute, which has three holes, by this name. The Fengsu tong says: 'Di means to cleanse [di], meaning to cleanse away depravity and filth and admit elegance and correctness.' Furthermore, in the time of Emperor Wu of the Han, Qiu Zhong was skilled at making flutes).