Briefly describe the "cultural context" in which the modern Peking Opera was produced from 1958 to 1964.

A. Between 1958 and 1964, radical ideas gradually became the dominant force of the time, and the artificial class struggle intensified, as did the issue of literature and art. B. The "Second Revolution" creative method provided a theoretical basis for conceptualizing reality in terms of political aspirations. C. Starting from the creation of "proletarian literature and art", the drama, which had a large audience and was easier to popularize, received more attention and was even basically rejected. D. The political-artistic structure replaced the original political-authenticity-artistic structure.