My Heart Will Go On (Movie Version)

The song's harmonic identity is defined by its transition from a pastoral, almost Celtic-influenced E major verse to a high-drama, minor-led chorus. The most distinctive feature is the modulation to Ab major for the final chorus; rather than a standard half-step or whole-step shift, it moves up a major third (E to Ab), which significantly increases the vocal tension and creates a massive cinematic lift consistent with its role as a film theme.

James Horner originally composed the melody as an instrumental motif for the film 'Titanic'. Director James Cameron was famously against having a pop song in the film. Secretly, Horner collaborated with lyricist Will Jennings to turn the theme into a song. Horner waited for a moment when Cameron was in a good mood to present the demo. Celine Dion initially disliked the song and didn't want to record it, but her husband and manager René Angélil convinced her to do a demo.

Serving as the theme for the blockbuster film Titanic, this song became Celine Dion's signature hit and one of the best-selling singles of all time. It blends James Horner’s cinematic orchestration with Dion’s legendary vocal range, defining the peak of the adult contemporary era.