Composed and published by Mendelssohn in 1826, when he was 17 years old. While influences from Beethoven are evident throughout, it shows increased originality compared to his Sonata in G minor, Op. 105. It consists of four movements, played without pause. The average performance time is approximately 25 minutes.

First Movement: E major, Allegro con espressione

Written with reference to Beethoven's Sonata No. 28 in A major, Op. 101, it possesses a very similar character. It is in sonata form with a short development section. It maintains a calm atmosphere throughout, without deviating from a relaxed tempo.

Second Movement: F-sharp minor, Tempo di Menuetto

It consists of two parts: a minuet played lightly and gracefully with staccato, and a trio played softly with legato and più vivace.

Third Movement: Recitativo, Adagio e senza tempo

In the score, it is written to follow directly from the second movement. In the recitative, key and time signatures are absent, and bar lines are not written, allowing it to be played literally as if speaking. As the number of voices gradually increases, it requires a careful ear and concentration to differentiate each voice. It builds from pp to ff with Allegretto come prima, adding richness to the sound, and continues into the fourth movement with that momentum.

Fourth Movement: E major, Molto Allegro e vivace

Overall, it is close to sonata form, with sections based on two themes, a middle section with a developmental character, followed by a recapitulation, and then Allegro con fuoco and Allegro con espressione. The piece generally progresses with vigor, but in the Allegro con espressione section, it is played tranquillo, contrasting with the previous momentum. The theme from the first movement reappears, employing cyclic form, which is also an influence from Beethoven. The piece concludes quietly with a calm descending arpeggiated figure, enhancing the serene atmosphere.