Guitarist Jim Williams is a British TV and film composer educated in classical and jazz composition with rich experience in popular music writing and performance. In 2007 he was nominated for an Ivor Novello Award for the music for Hotel Babylon, though since then he has focused on some of the more innovative feature films of recent times.
In Ben Wheatley’s Kill List the Financial Times reported on "Jim Williams" eminently unsettling score – the film’s saturnine heartbeat – puls[ing] underneath’ and the LA Times described "Jim Williams’s brilliant score, which is filled with strings so taut, they sound like screams you might hear in the distance." For A Field in England the Hollywood Reporter felt that "Jim Williams deserve[s] special mention for underpinning these ostensibly calm pastoral scenes with a constant undertow of clanging, churning menace," and for Julia Ducournau’s highly acclaimed RAW, Variety observed that "Williams essays a similar approach to that taken in [his score for] Wheatley’s killer road-trip comedy Sightseers, with folksy lighter numbers giving way to heavier, more psychedelic freak-out tracks as the characters degenerate into madness'. For 2018’s Beast, Variety again noted the many, varied screeches and squeaks of Jim Williams' terrifically rattling score lending a significant hand in…. keeping the film's whodunit structure tightly screwed."