Elliott is a Musical Supervisor, Musical Director, Composer and Arranger having graduated from the Royal Academy of Music.
He was musical supervisor, music director, arranger and orchestrator for the original production (Hampstead Theatre) and West End transfer (The Harold Pinter Theatre) of Sunny Afternoon, a musical about The Kinks. The production won four Olivier Awards including Best New Musical and Outstanding Achievement in Music.
Elliott has worked as co-musical director, keyboard player and string arranger for The Who, performing Quadrophenia at the Royal Albert Hall and appeared with other artists including Alice Cooper and Brian May and Roger Taylor of Queen. He has been keyboard player for singer/songwriter Jim Diamond and has played keyboards for the West End productions of Wicked, Spamalot, Zorro, The Sound of Music and for the UK Tour of Flashdance.