The eventual survival of the tradition is ultimately not at stake. - Charles Rosen

Inaudible music may seem an odd notion, even a foolishly Romantic one—although it is partly the Romantic prejudice in favor of sensuous experience that makes it seem odd. Still, there are details of music which cannot be heard but only imagined, and even certain aspects of musical form which cannot be realized in sound even by the imagination.

For Beethoven, music was still shape, realized and inflected by instrumental sonority: other realizations may be as absurd as arrangements of the Hammerklavier, for example, always are, but the musical conception takes precedence over its realization in sound. The sonority serves the music. For Schumann, however, as for Chopin and Liszt, the conception was worked out directly within the sonority as a sculptor works directly in clay or marble. The instrumental sound is shaped into music.

The mazurka provided him with a repertoire of motifs, rhythms, and sonorities outside the main Italian, French, and German traditions of European music: he used it to create a series of works within this tradition which are absolutely personal—marginal works which challenge the center.
They are the most eccentric and original of Chopin's works. We shall never know exactly what and how much Chopin took directly from the popular folk tradition and how much he invented, but it does not matter: his originality is revealed as much in what he selected as in what he imagined. The folk dances gave him the possibility of exploring new harmonies, of exploiting the emotional effect of obsessive repetition, and of developing a new form of rubato.