Among the eight model plays eventually retained during that time were five Peking operas. Notable among these operas was "The Legend of the Red Lantern", which was approved as a concert with piano accompaniment based on a suggestion from Jiang Qing. Performances of works beyond the eight model plays were allowed only in heavily modified form. The endings of many traditional plays were changed, and visible stage assistants in Peking opera were eliminated. After the end of the Cultural Revolution in the late 1970s, traditional Peking opera began to be performed again. Peking opera and other theatrical art forms were a controversial subject both before and during the Twelfth National People's Congress in 1982. A study carried in the "People's Daily" revealed that over 80 percent of musical dramas staged in the country were traditional plays from the pre-Communist era, as opposed to newly written historical dramas promoting socialist values. In response, Communist party officials enacted reforms to curb liberalism and foreign influence in theatrical works.