Allegro ma non troppo in E-flat major, 6/8 time. It is an impromptu with the character of a barcarolle. Throughout the piece, the left hand traces undulating curves. The music progresses through smooth arpeggios, characterized by the prominent repetition of ascending and descending patterns, which is one of Fauré's distinctive compositional techniques. Chromatic melodic movement is also characteristic. The concluding section is skillfully constructed with deceptive modulations and captivating harmonies.