Martin trained at the Royal College of Music and now runs a successful music production company and recording studio with Nick Gilpin, which has undertaken numerous television, album and DVD projects.
For over fourteen years, he was Musical Supervisor for Cameron Mackintosh, working on shows such as Les Misérables, Miss Saigon, Cats, and Oliver!. More recently, his work includes Mamma Mia! and Billy Elliot.
Martin's orchestrations include the musicals Just So, Moby Dick, Mamma Mia!, Jerry Spinger The Opera, Billy Elliot, Bad Girls, and Desperately Seeking Susan, as well as Kombat Opera Presents... on BBC 2 and Paparazzi and Cattle Call, two ballets by Richard Thomas, and Shoes at Sadler's Wells.
He has recorded over thirty albums, including Les Misérables (original cast album and symphonic recording), Miss Saigon, Oliver!, Hey! Mr Producer, Mamma Mia!, Jerry Springer The Opera, Billy Elliot, Bad Girls, John Barrowman - The Album and Shoes.
He has been Musical Supervisor for the BBC productions of the Royal Variety Performance and Sports Personality of the Year for over ten years and composed, orchestrated and supervised the music for the Commonwealth Games Glasgow 2010 handover in Delhi.
Martin is Music Supervisor for the London 2012 Olympic and Paralympic Opening and Closing Ceremonies, and Music Director and Composer for the London 2012 Paralympic Opening Ceremony.
He won a Tony Award and Drama Desk Award for Billy Elliot and was Tony- and Grammy-nominated for Mamma Mia!.