Answer:
The swing era is generally defined as the decade from 1935 to 1945, although swing music examples can be found in the early 1930s. The rise and decline of swing music seems to coincide with the Depression and World War II through music that helped lift the nation's spirits during these challenging times.
Saturated color is not one of the elements
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I would say Tchaikovsky, because the nutcracker is the most known ballet, but this question could be opinionated so it’s hard to tell. I hope I helped!