Introduction to the Divine Music Department: Located in the west outer altar of the Temple of Heaven, it was built in the 18th year of Yongle in the Ming Dynasty (1420). It was originally called Shen Guangtan. It was a place for practicing rituals and music during the Ming and Qing Dynasties. It was known as the most important place in the Ming and Qing dynasties. The highest institution of etiquette and music.