Piano Works: Around 50 piano pieces, comprising preludes, études, nocturnes, arabesques, and more.
Orchestral Works: Approximately 20 works, including "Prélude à l'après-midi d'un faune," "La Mer," and "Nocturnes."
Chamber Music: Various chamber works, such as string quartets, sonatas, and trios.
Songs and Choral Music: Debussy composed around 50 songs (mélodies) for solo voice and piano, along with some choral works.
Operas: Debussy completed one opera, "Pelléas et Mélisande," which is considered his operatic masterpiece.
It's worth noting that this count does not include smaller compositions, arrangements, unfinished works, or sketches that Debussy might have left behind. Additionally, some of his works have multiple versions or movements, which could further increase the total count.
Regardless, Claude Debussy's compositions are characterized by their unique style, impressionistic qualities, and innovative orchestral techniques, making him one of the most influential composers of the late 19th and early 20th centuries.