TRADITIONAL: Museum opera. Magnificent scenography and costumes in correct historical time. Suffers often too much idea into the vision and too little time of what happens, the characters reactions to each other and the different situations.
MODERN: Operas are put in another epoch than it belongs. Popular times to put operas: 1st or 2nd world war, the 1920s, 1930s, 1950s, 1970s, and so on, and of course, outer space, Science fiction. Usually without any regards to those parts of the story that cannot just be put in another epoch. The Idea is often that audience is stupid and that opera stories are just stupid stories to be used as background to the theater piece you always wanted to put up but nobody wanted. Opera Houses are different another scandal is always welcome even if the audience should hate it. It is more important to get into the newspapers.
GOOD: The audience can empathize with the main characters, the actions makes sense. One can understand the physical and emotional surroundings of the characters. Etc.
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