As for the song, "Dream Back to the Tang Dynasty" by the Tang Dynasty Band is very grand and very ancient. I also recommend you listen to Cheng Chi's "Mahayana" which is pure music. The documentary Xuanzang's Journey to the West and the Daming Palace all use music from it, some are grand, some are elegant, and some are tragic. If you like the Tang Dynasty, I suggest you watch the documentary Daming Palace. Or take a look at the book "Dark Night of the Tang Dynasty". There are three books, which are very good. They describe the history of the Tang Dynasty from the side by solving puzzles such as "Youyang Zazu" and other Tang Dynasty strange novels.