The iconic composer and pianist born in 1770 recognized for revolutionizing classical music with symphonies and sonatas is Ludwig van Beethoven. His innovative compositions bridged the transition between the Classical and Romantic eras, introducing new emotional depth and structural complexity. Notable works include the Ninth Symphony and Piano Sonatas, reflecting his mastery of form and expression. Beethoven's influence on music theory and practice remains profound, shaping the course of Western music history.