[1] She has worked in the classical and pop genres, as a film composer, and was one of the core members of the synth-pop band Art of Noise.

[4] Trained as a classical performer, she moved into the competitive commercial field as a session musician, where her professional relationship with Trevor Horn began.

Their hits include "Beat Box" (1984), "Moments in Love" (1985), "Close (to the Edit)" (1984), "Paranoimia" (1986), which featured a monologue about insomnia by the artificial intelligence character, Max Headroom, and, with Tom Jones, "Kiss", a Top 10 in 1988.

Dudley's association with Trevor Horn and Art of Noise led on to working with artists such as Frankie Goes to Hollywood, Seal, Marc Almond, Rod Stewart, Robbie Williams and, more recently, Siphiwo.

Another collaboration in 1989 was with Neil Tennant from Pet Shop Boys and Bernard Sumner of New Order; Dudley contributed the lush string arrangements on their debut Electronic release, "Getting Away with It", which peaked at #12 in the UK in December 1989, and #38 in the US in 1990.

Her first commission as Composer in Association with the BBC Concert Orchestra was "Music and Silence", inspired by the novel of the same name by Rose Tremain and first performed at The Royal Festival Hall in 2002.

She was the musical director for Bill Bailey's Remarkable Guide to the Orchestra, first performed in Brighton then at the Royal Albert Hall in 2008, which was recorded and released as a DVD in December 2009.