明初期北曲形成金陵、汴梁、云中三派,其中中州以弦索调名都;明中后期增加了北方俗曲的元素,形成弦索时剧。而弦索腔则为明末清初在北方俗曲基础形成的北曲俗唱之另一格。“北曲、弦索、弦索调、弦索腔”四概念中,北曲涵括弦索;弦索包含弦索调;弦索调与弦索腔在渊源上有联系,演唱主体差别大于重合。《琵琶记》非但不是南曲入弦索之始,恰恰是南曲背离弦索北曲旧有格范之始。弦索调清唱与剧唱非制动关系,是此消彼长、互有你我的互动关系。 In the early Ming Dynasty, the Northern Song Dynasty formed Jinling, Liangliang and Yunfu three factions, of which Zhongzhou was named by the name of strings. In the middle and late Ming Dynasty, the elements of the Northern Songs were added to form the Chordan drama. The chordal cavity is the Ming and Qing Dynasties in the northern part of the formation of the basis of the North song vulgar singing another cell. “North song, chord cable, chord cable, chord cable chamber ” four concepts, the North song includes chord; chord cable contains chord; chord tune and chord cable cavity in the origin of the link, the main singer The difference is greater than coincidence. “Pipa not only” is not the beginning of the South song into the string, it is precisely the South song away from the beginning of the song genre song North song. Chord cable singing and singing non-braking relationship, is the shift, mutual interaction of you and me.