What are some achievements of Achille-Claude Debussy?

* He was one of the most influential composers of the late 19th and early 20th centuries. Debussy's music is characterized by its use of impressionism, a technique that seeks to capture the fleeting impressions of the moment. His works are often characterized by their use of lush orchestration, delicate melodies, and evocative harmonies.

* He helped to popularize the use of non-traditional scales and harmonies in Western classical music. Debussy was influenced by a variety of musical traditions, including the music of the Far East, and he incorporated many of these elements into his own music. His use of non-traditional scales and harmonies helped to create a new and unique sound that set him apart from his contemporaries.

* He was a gifted pianist and conductor. Debussy was a virtuoso pianist, and he often performed his own works. He was also a gifted conductor, and he led many performances of his own works and those of other composers.

* He was a mentor to many young composers. Debussy was a kind and generous man who was always willing to help young composers. He provided encouragement and advice, and he often helped them to get their music published.

* He was a respected and admired figure in the music world. Debussy was widely recognized as one of the most important composers of his time. He received many awards and honors, and his music is still performed and enjoyed today.