What is Debussy?
1.
a French impressionist composer (Claude Debussy). He composed music that was atonal and that's obviously why the other person doesn't like him, but Debussy did not destroy classical music. Impressionism is just another branch of classical music and if you don't like it, that's your problem. Debussy composed many beautiful sounding pieces such as La Mer, Arabesque, Petite Suite, and many others. Compare to Ravel.
Debussy was a French impressionist composer who did NOT destroy classical music.
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2.
Claude Achille Debussy
Don't compare to Ravel. Debussy's melodies (or motifs) are superior to most highly influential composers. The reason music took a plunge after Debussy is because no one could do what he had done, and so the contemporary era begun with great rancor and imparity.
Most popular works are "Prelude a l'apres-midi d'un faune", "Claire de lune," "Jeux de vagues" from La Mer, "Arabesque No. 1," "Reverie," and "La Fille aux cheveux de lin."
Claude Debussy is single-handedly the greatest composer of his time.
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3.
French impressionist composer who produced ill-sounding, structure-lacking, melody-absent underdeveloped pieces of insufficient crap.
The impressionist movement single-handedly destroyed classical music.