Graham was born in Glasgow, Scotland, into a musical family; both his parents professional musicians. His mother a Singing Teacher and his father an Opera Singer. He began singing at the age of five as a chorister in Paisley Abbey Choir where he later became Head Chorister.
An alumnus of the Royal Northern College of Music, Graham has gone on to establish himself as a Composer, Musical Director and Performer. Working with the likes of Hans Zimmer, Lin Manuel Miranda, Boy George, Jesse Glynne, Tom Hiddleston, Claire Danes, Sir Mark Elder amongst many others.
From his own music, under the name Marouli to singing with The Dunedin Consort, to composing additional music for the likes of The Essex Serpent, His Dark Materials, or to scoring music and conducting music for a Netflix feature film, The Strays, his work is ambitious, forward-looking, always adapting and amalgamating musical forms.
As a composer and arranger Graham has become most established in Film and TV. A personable and positive personality who enjoys working one-to-one with the director and/or music supervisor to achieve what needs to be enhanced on the screen. He has worked on projects for Netflix, Apple TV, HBO, BBC and more.