While the predecessors had modern instruments which emphasized the nature of the spy genre, Lewis and Margeson however used an old-fashioned approach, consisting of classical and grandeur themes with traditional orchestra.

Afterwards, a separate suite for post-production were set up in Long Cross for recording and editing the film's music.

Matthew Vaughn wanted to explore each avenue of the film's music which led the composers rewriting each cue to try different things.

[1][2] The King's Man's score album was released by Hollywood Records on 22 December 2021, alongside the film.

[11] Filmtracks.com wrote "Margeson and Lewis do not match the tight narrative arc and snazzy appeal of Jackman's coordination in Kingsman: The Golden Circle.