Singing songs? thats confucianism!
Idols are confucianists
Theme is Medb song from this event https://www.youtube.com/watch?v=IkJ9IXVxT68 thats a pretty good song tho I have no idea what the lyrics are
Thumbnail :
https://fategrandorder.fandom.com/wiki/Shi_Huang_Di?file=S229Illust7.jpg#Others