Prokofiev was not alone among the leading composers of the twentieth century in changing his style repeatedly in the course of his career: Stravinsky… - Boris Berman

Prokofiev’s playing of lyrical music is especially noteworthy. His phrasing can be exquisitely beautiful in its dynamic molding (second theme of the Andante assaifrom Sonata No. 4; the middle section of Vision fugitive,op. 22, no. 11), and his polyphonic voicing can be clear and expressive (Sonatina pastorale, op. 59, no. 3).

The playing of Soviet pianists of the younger generation differed significantly from the composer’s performing style, as discussed above. (Here I am referring to the generation of Richter and Gilels or younger, as opposed to Prokofiev’s coevals such as Neuhaus and Samuil Feinberg, who also had Prokofiev’s works in their repertoires.) Since we know that Prokofiev appreciated their playing, does it mean that he accepted their approach? Should we regard the new generation’s playing as a distortion of the composer’s intentions or as a natural evolution of interpretive style? I believe that Prokofiev, having been exposed to the new performing style of the Soviet pianists, accepted at least some of its qualities. We can mention assertive muscular playing, open expressivity, and a gripping commitment to the music among those traits that brought recognition to Soviet pianists and assured their success in the international arena. These characteristics were concordant with the evolving compositional style of Prokofiev, whose later works became both more virile (often heroic) and expressive in a warmer and more open way.

Prokofiev had a lifelong love of the sonata form. Ever since learning the basic rules during his childhood years, he strove to master them; … In 1941, describing his Sonatinas op. 54 (1931), he remarked, “I liked the idea of writing a simple work in such a superior form as sonata.” One can learn a lot about the composer’s growth by tracing his progress from the early sonatas, which cautiously dare to bend the textbook rules, to the masterful treatment of the form in his late works.