There is a paradox at the heart of Chopin's style, in its unlikely combination of a rich chromatic web of polyphony, based on a profound experience of J. S. Bach, with a sense of melody and a way of sustaining the melodic line derived directly from Italian opera. The paradox is only apparent, and it is never felt as such when one hears the music. The two influences are perfectly synthesized, and they give each other a new kind of power.

Ch. 5 : Chopin: Counterpoint and the Narrative Forms - The Romantic Generation (1995)