Claude Debussy (1862-1918) was a French composer known for his innovative and impressionistic style. He revolutionized classical music with works like "Prelude to the Afternoon of a Faun" and "La Mer." Debussy drew inspiration from art, literature, and nature, creating rich textures and harmonies. His music often evoked emotions and atmosphere rather than following traditional structures. Debussy's influence can be seen in composers like Ravel and Stravinsky, solidifying his legacy as a key figure in 20th-century music.