No, the correct answer is D. Einstein on the Beach was a unique opera because it had no plot and very little singing. To arrive at this answer, we can eliminate options A, B, and C based on the provided information. Option A is incorrect because the opera did not have only a single violinist, as it featured a large ensemble of musicians. Option B is incorrect because recitative refers to a style of singing, which was not the exclusive style used in Einstein on the Beach. Option C is incorrect because the opera was not written in Chinese. Therefore, option D is the correct answer.
