Theatre: Once (Broadway & NYTW); War Horse; Caroline, or Change; Jerry Springer: The Opera; A Funny Thing Happened on the Way to the Forum; Nation (National Theatre); An Appointment With the Wicker Man; The Wolves in the Walls (National Theatre of Scotland/Improbable); Mamma Mia! (London, Tokyo, Seoul, international tour, Stockholm, Shanghai); The Full Monty; Once on This Island; Cats; Les Misérables (West End). Recordings: Once, Mamma Mia! (original London cast and movie soundtrack), Jerry Springer: The Opera, Once on This Island.
Martin was musical director for Mamma Mia! the movie (Universal).