Its full title is "Rhapsody on a Theme of Paganini", which is a gentle, sentimental, and pathos piano concerto. This piece is a piano and orchestral work completed by Russian composer Rachmaninov in 1934. It is based on the theme of Italian violinist Paganini's 24th Violin Caprice, No. 43. This piece of music was used by the director as an important musical prop, playing a role in communicating across time and space between the male and female protagonists.