For Mendelssohn, Beethoven was the new point of departure, and a German composer could not afford to ignore him, as Chopin and Verdi were able to do. - Charles Rosen

It is not, however, the unfamiliarity or strangeness of a work or of a composer's manner that is a bar to understanding, but rather the disappearance of the familiar, the ongoing disappointment of the expectations and hopes fostered by the musical tradition in which we have grown up.

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.

The secret of avoiding monotony with the four-bar module was to vary the accent and the weight of the bars to avoid giving a similar emphatic accent on the first bar of every group, as if one were accenting a downbeat. After Beethoven and before Brahms, perhaps the greatest master of the technique was Chopin, as one can see from the opening of the Nocturne in D flat Major, Op. 27, no. 2, of 1836 ...