The key to the maturation of northern drama is the establishment of system that set poetic drama to music,the forefather of which is Zhu Gong Tune in North Song Dynasty.

• 北曲杂剧成熟的关键是曲牌联套音乐体制的确立,形成于北宋时期的诸宫调是北曲的不祧之祖,而其由词调向曲调的转化是在金代多民族音乐融会变革的历史进程中完成的。