《宋书·乐志》载有清商瑟调“十五大曲”的曲辞,是目前所能见到的最早的大曲文献实例,其流行与当时清商署之设置、功能与性质有密切关系。由于西晋一朝乐官机构改革力度相当大,变更了曹魏清商署音乐表演局限于皇宫殿阁的特点,从而推动了清商大曲在朝廷上和社会上的传播,所以十五大曲的“流行年代”理应定在西晋。此外,作为鲜卑族民歌的《阿干之歌》和《真人代歌》或多或少都曾受到西晋大曲形式的影响,这也补充证明了十五大曲的真正流行年代应在西晋时期,而这两首民族歌曲在文学史、音乐史上的价值也再次获得肯定。 “Song Shu Le Zhi” contains the Qing Chaser census “fifteen Daqu ” song, is the earliest examples of Daqu literature can be seen, its popularity and the current Qing Shang Shu set, function and Nature is closely related. As the Western Jin Dynasty, once the reform of music officials institutions quite a large change in the Cao Wei Qing Shang Department of music limited to the palace palace features, thus promoting the Qing Shang Daqu in the court and the community, so the fifteen Daqu “Pop era” should be set in the Western Jin Dynasty. In addition, as the Xianbei folk song “A Qian Song” and “live-action song” have been more or less affected by the form of the Western Jin Dynasty Daqu, which also added that the fifteen Daqu real popular era should be in the Western Jin Dynasty, The two national songs in the history of literature, the value of music history once again be affirmed.