Claude Debussy (born Achille-Claude Debussy) was among the most influential composers of the late 19th and early 20th centuries. His mature compositions, distinctive and appealing, combined modernism and sensuality so successfully that their sheer beauty often obscures their technical innovation. Debussy is considered the founder and leading exponent of musical Impressionism (although he resisted the label), and his adoption of non-traditional scales and tonal structures was paradigmatic for many composers who followed.

FROM Achille-Claude Debussy (1862-1918): Biography:
http://www.allmusic.com/artist/claude-debussy-mn0000768781/biography