''Paidi'' ( zh, 排笛) is an instrument that consists of two to four parallel ''dizi''s of different length bound together. It was invented by Zhao Songting at the beginning of 1960s. Compared with the conventional '' dizi'', ''paidi'' has a wider range and can produce different timbres.{{Cite journal, title=排笛——介绍将几根笛子扎在一起演奏的方法, author=赵松庭, url=https://wap.cnki.net/touch/web/Journal/Article/YIQI197902019.html, journal=乐器科技, issue=2, year=1979, page=51

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"Birds in Shade" by Du Rusong"Busy Plucking Tea-Leaves" by Tsai Hsueh Jen
Side-blown flutes Chinese musical instruments