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Composers often write pieces in a highly contrasting moods in very close proximity. But no composer took this process further than Beethoven. His famous Fifth Symphony, with an opening every child knows, became the standard for the Romantic, tragedy-to-triumph, "victory symphony". On the other hand, the sunnny Seventh represents a high water mark of musical dynamism, energy, and orchestral brilliance expressed in the purest Classical style. Both symphonies had an inestimable impact on later music.