Jemma Jeffery is a British composer for media specialising in orchestral hybrid writing with atmospheric depth and a dark, emotive quality. She is particularly drawn to scoring small, intimate moments that carry big, complex emotions.

Composing from an early age, Jemma's passion for the craft led her to the Young Composers' Academy (Bristol) and the Young Composers' Project (Birmingham Conservatoire), where she received her first commission at just 15 for an interactive storytelling project. She went on to study Music at the University of Cambridge, graduating in 2023 with First Class Honours and completing an MPhil in Music in 2024 — studying composition under Lisa Illean, Marta Gentilucci, and Mike Ladouceur, and receiving the William Barclay Squire Scholarship and Canon Greville Cooke Prize for musical excellence.

Since graduating, Jemma has been building her craft at the intersection of music and image. Her screen credits include the score for Chasing Coexistence (2025, dir. Ieuan Rose), a wildlife documentary short produced in partnership with the BBC Natural History Unit, recently nominated for an RTS Student Award, and sound design for the short film The Neon Cross (2025, dir. Chloe Dover). She was recently named a finalist in The Cue Tube's 'Vesper' Competition, receiving praise from industry professionals including Nicholas Dodd and Brian Morrell. To deepen her understanding of the full audio pipeline, she shadowed Sound Editors Tom Mercer and Jonny Crew at Wounded Buffalo Sound Studios, gaining hands-on insight into post-production for BBC, Netflix, and Disney projects.

At the heart of Jemma's work is a continual curiosity — a fascination with how music can tell stories, provoke empathy, and invite reflection. Her scores span orchestral hybrid and choral sound worlds and she brings the same instinct for atmospheric depth and emotional complexity to every project she works on.

She is a member of the Alliance for Women Film Composers, and is currently a mentee with the RESISTER Academy 2026, and a No Fixed Mix 2026 mentee with Strings and Tins.