 His score incorporated adaptations of themes from Scottish folk music to include in his compositions, and used the Scotch snap musical form to reinforce the theme.The musicologist Kate Daubney writes that Irving's score "Seems positively lush with its expansive seascapes and emotive expressions of anxiety in the community".The opening music to the film begins with English brass notes, but this changes to Scottish melodies; Daubney describes how the "balance of material evokes the English-Scottish relationship which will emerge in the film's story".