Originally, Alexandre Desplat was recruited to score the film's music in September 2022,[1] but following his exit, Mark Ronson and Andrew Wyatt, who executive produced the soundtrack and contributed to the production and composition of the original songs, worked on the film's score in March 2023.

[6] At the edit, Gerwig felt the song needed to be drawn out for a seven-minute battle sequence, insisting him to score for the film, which he agreed.

Ronson used the Yamaha CS-80 synthesizer from his studio, that produces a kind of "eerie and windy, but rich and emotive" referencing the sound of the television series Stranger Things.

[8] Gerwig enjoyed orchestral and classical music, which led to Ronson and Wyatt tasked with balancing two different sounds.

"[12] In a mixed review, critic based at Filmtracks.com commented "The score's only average appeal was likely a result sealed during the spotting stage of production, with the Eilish song's outsized influence a poor choice given its lack of warmth for any of those adaptations.