Intermezzo from a Largo divoto that reaches a Maestoso climax before plunging into the headlong Allegro risoluto finale. The Second, Third and Fourth piano sonatas are unrelated one-movement works. They were written during the period 1904–07 and published as the "Sonata-Triad", Op. 11. The first of the trio, in A, is an ecstatic work with attractive, lyrical themes, prefaced by a poem by Goethe. The second, in D minor, is entitled "Sonate-Elegie". It opens slowly with one of Medtner's best-known themes and closes with an animated coda (Allegro molto doppio movimento, in D major) based on the second subject. The third, in C, returns to the lyricism of the first. The Fifth and formerly the most popular of his sonatas is the G minor, Op. 22, written in 1909–1910. The piece alternates a slow introduction with a three-theme, propulsive sonata movement, one of whose themes was heard in the Introduction. The emotional center of this compact work (sixteen minutes in duration) is the Interludium: Andante lugubre: this comprises most of the development section and contains some of Medtner's loveliest harmonies. There are historic recordings by Moiseiwitch and Gilels. The Sixth Sonata followed soon after, the first of two that comprise his Op. 25. It bears the title "Sonata-Skazka", usually translated as "Fairy Tale Sonata". This short work in C minor, written in 1910–11, is in three movements; the second and third are connected. The first movement is a compact sonata-form, the slow movement rondo-like (the similarity to one melody by Rachmaninoff is coincidental, as the latter was not written until some thirty years later). A minatory final march with variations ends with a Coda that revisits earlier material. This was the only Medtner sonata that Rachmaninoff performed. Its companion in Op. 25 is entirely different. The Seventh Sonata in E minor, Night Wind, after Fyodor Tyutchev's 1832 poem "Of what do you howl, night wind...?" (), an excerpt of which provides an epigraph, was completed in 1911 and dedicated to Sergei Rachmaninoff, who immediately recognised its greatness. It is a vast one-movement work, lasting almost 35 minutes, in two major parts: an Introduction and Allegro sonata-form, followed by a Fantasy capped by a shadowy but active Coda, the latter entirely and ingeniously based on material presented in the Introduction. Under the title "Sonata" Medtner added a note: "The whole piece is in an epic spirit" (Вся пьеса в эпическом духе).