French composer Claude Debussy was a leading figure in the late 19th and early 20th century musical impressionism movement. He is widely regarded as one of the most influential composers of the late Romantic period, and his works are still performed and studied today. Debussy's music is characterized by its dreamy, atmospheric soundscapes, which often evoke images of nature and the sea. He is best known for his orchestral works such as 'La Mer' and 'Prelude to the Afternoon of a Faun, ' as well as his piano works, including 'Clair de Lune' and 'CHILDREN's Corner.'