This saying usually appeared in literary works or movies to describe a person who had a strong interest and feelings for a city because of the melody or lyrics of a song. This situation usually happened between two people. One party felt the unique charm of the city because of the melody or lyrics of a song and began to have a strong interest and feelings for the city. The other party felt a resonance and emotional connection because of the song or the city. This kind of situation often appeared in literary works, such as a moving song, which could arouse the readers or audience's resonance with a city. It could make them feel the unique charm and historical heritage of the city, and thus generate love and yearning for the city. In movies, the lyrics of a song could also arouse the audience's love and yearning for a city, allowing them to feel the unique charm and romantic atmosphere of the city, thus generating a strong interest and feelings for the city. It was a common phenomenon for a song to fall in love with a city. It was also a common plot in literature and movies. This kind of situation usually showed people's love and yearning for the city, as well as their emotional and cultural resonance and connection.