The so-called eight model plays were officially formed during the Cultural Revolution (1966-1976). They were the only plays performed at that time. Materials were from the communist activities or related subjects. Actually the then staged modern plays were not just limited to eight. They are the "The Legend of Red Lantern", "Sha Jia Bang", "The Harbor", "Takeover of Wei-Hu Mountain", "Hymn of Dragon River", "Battle on the Plain", "The Du-Juan Mountain", "Sweeping the White Tiger Regiment", "Pan-Shi-Wan" and "Red Woman Detachment". The model plays were then " translated" into other local operas. Usually that means adopting the playscripts as they were and changing the music accordingly.