Final answer:
In Mendelssohn's music, the transition to calm after a stormy passage is achieved through the introduction of a serene and lyrical theme, typically in the strings section of the orchestra, mirroring the emotional narrative techniques found in film and visual arts.
Step-by-step explanation:
In the new transition of the recapitulation, Felix Mendelssohn presents a calm after the storm by reintroducing a serene and lyrical theme, often in the strings. This method creates a sense of peace and resolution after an intense and possibly tumultuous section of a musical work. It is akin to the cinematic technique of using music to set the mood of a scene, much like how a melancholic soundtrack can instill a sense of danger, whereas a soft and uplifting melody can signify a happy moment. In Romantic music, this approach is commonly employed to convey the powerful drama of human emotions and convey a narrative arc within the music. It can be compared to visual art, where a pastoral and peaceful landscape can contrast with a threatening storm, illustrating a return to tranquility.