Final answer:
Ludwig van Beethoven played a key role in transitioning from the Classical to the Romantic music style and introduced new forms of composition.
Step-by-step explanation:
Ludwig van Beethoven, although born into the legacy of the Classical music style, is recognized for his key role in transitioning from the Classical to the rich, expressive Romantic music style. Instead of incorporating Baroque forms and structures, Beethoven was a pioneer in breaking with tradition and pushing the boundaries of music composition. He introduced new forms such as the symphonic poem and expanded existing forms such as the symphony, sonata, and concerto.
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