croissance progressive

Progressive growth — Dutilleux's concept of formal construction through continuous organic development, in which material never literally repeats but is always transformed, extended, or viewed from a new angle. He described his approach as analogous to literary development in French poetry: phrases and images recur, but always changed by their new context. The Piano Sonata exemplifies this: themes from the first movement reappear in the third, but transformed into something richer and more complex.

When learning the Piano Sonata, resist the impulse to play each movement as self-contained. The third movement's Choral is prepared by the first movement's opening; the variations are not decorations but revelations of what was latent in the opening material. The score rewards long-form listening — trace the threads across movements before you section-practise.