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

The opposition between structure and sonority in music is almost as misleading as that between line and color in the visual arts. Baudelaire insisted, correctly, that Delacroix was one of the three greatest draftsmen of the century, and emphasized his mastery of line. In the same way, a study of Chopin demonstrates the intimate relation between line and color in music.

The musical language which made the classical style possible is that of tonality, which was not a massive, immobile system but a living, gradually changing language from its beginning. It had reached a new and important turning point just before the style of Haydn and Mozart took shape.

The extraordinary stylistic changes of late eighteenth-century music may have provided much of the inspiration for the literature of the turn of the century, but the literary forms that resulted were deeply eccentric. It was these works—paradoxical, anticlassical, often with startlingly unbalanced proportions—which in turn influenced the music of the generation of composers that followed. The most clearly affected by literature and art were Schumann, Berlioz, and Liszt, but neither Mendelssohn nor Chopin remained untouched by literary developments, like the revival of Celtic and medieval poetry, as the overtures of Mendelssohn and the Ballades of Chopin explicitly demonstrate.