"Out of the Mountain". "Out of the Mountain" is a folk song written by Hua Zhou, written by Wang Shengnan and Hua Zhou, and composed by BachBeats. It was released on September 28, 2018 and included in the album "Congee Treats". Peking Opera is one of the main opera types in my country. It evolved from the Hui tune and Han tune that were introduced to Beijing in the middle of the Qing Dynasty. The tune is mainly Xipi and Erhuang, accompanied by Huqin, gongs and drums, etc., and later became popular throughout the country.