The one with a pure music title song is called "Nine Songs of Heaven's Movement - Heart's Reverse Scale" ----- Wei Xiaohan, and there is another opening song called "Nine Songs of Heaven's Movement" --- Huo Zun, the ending song "Painting Style" - Hou Xian, NetEase Cloud Music has a song list called "Qin Shi Mingyue - Tian Xing Nine Songs (Complete Collection)" which includes Qin Shi Mingyue and Tian Xing Nine Songs All songs including background music.