The F major Sonata, Op 5 No 1, has only two movements, though both are quite substantial, the first introduced by an Adagio sostenuto that is almost a movement in its own right. It gradually unfolds from arpeggios on the common chord of F major, an idea that is also present in the first subject of the main Allegro, a dolce melody on the piano that is soon repeated on the cello. An extensive bridge passage, dominated by off-beat accents, leads to the fragmentary second subject group in the dominant: semiquaver scales run into a staccato passage on the piano alone before the cello enters with a more melodic idea and the codetta makes way for the wide-ranging development section. The recapitulation is a straightforward restatement of the opening section, but the coda is extended by the interpolation of a short Adagio passage (unrelated to the introduction) and a similarly brief Presto section of dominant preparation to the concluding affirmation of F major. The second and final movement is a rondo in 6/8 time with a main theme that makes much play out of a rhythmic displacement between the two instruments.