Her television score credits include The Sister, Bloodlands, Bodyguard,[3] The Durrells,[4] Collateral, Legacy,[5] Law & Order: Organized Crime, and Victoria.

She cites 1978s The Incredible Hulk, Queen's 1980 Flash Gordon Soundtrack, and a number of commercials broadcast throughout the 1980s as childhood inspirations that piqued her interest in music.

Her first full time role was in post-production for ITV, which allowed her to build key relationships with producers and directors, while gaining practical experience composing for documentaries.

Barrett also met her future husband, "sound engineer, electronic music aficionado, composer and synth super-geek", Ruskin Williamson while working there.

[8] After leaving ITV, she freelanced at Strongroom Studios where she began working with her future mentor and collaborator Martin Phipps.