They also adopted tunes of folk ditty and imperial music of the Tang and Song Dynasties, and all had relationship with the ci tune of Song ci, which provides the new material for the research of Chinese musical and literary history.

• 此外它们的曲调还有来自唱赚、代教坊曲和唐宋大曲的,而且皆与宋词词调有密切的关系,有的可补宋词词调之阙,为研究中国音乐文学史提供了新的资料。