Gregson-Williams looked back to the advantage of the 14th century setting to guide the score and the narrative that builds to the judicial duel Jean de Carrouges (Matt Damon) and Jacques Le Gris (Adam Driver) after Marguerite (Jodie Comer) accuses the latter of rape.

[3] He further integrated with moody orchestral textures and gentle synthesizers for the "dark and imposing music" to surround Jacques [Le Gris] in the third act.

[1][4] Gregson-Williams wanted a vocal element to provide an essence to the score, where unlike, Kingdom of Heaven, which employed more than 100 members of London’s Bach Choir, he recruited the British acapella octet group Voces8, led by English soprano artist Grace Davidson.

"[2][1] Music critic Jonathan Broxton summarised, "unlike The Green Knight, the comparative straightforwardness of The Last Duel will likely make it much more palatable to mainstream audiences than Daniel Hart’s offbeat experimental effort.

[6] Anton Smit of Soundtrack World wrote "If you think about duels and medieval times, you think about fighting, clashing swords and a lot of manly adrenaline, but the music does not reflect that at all.