He is well known for his many film, TV and stage credits, and for his contributions to pop recordings, notably those by Donovan, Cilla Black and the group Hot Chocolate.
[5] Cameron also began working in television; one of his first major credits in this area was as music director and arranger for three seasons of the TV variety series Once More with Felix with folk-singer Julie Felix (1967–69), The Bobbie Gentry Show and numerous episodes of Stanley Dorfman's In Concert series for the BBC, which featured artists including James Taylor, Joni Mitchell and Randy Newman.
[5] Cameron had further success as pop arranger with UK soul-funk band Hot Chocolate, working on all their hit singles including "Emma", "Heaven Is in the Back Seat of My Cadillac", "You Sexy Thing" and "Every 1's a Winner".
[5] He is also credited for the score on the 1974 UK hit single "Central Park Arrest" by vocal trio Thunderthighs, working alongside Steve Rowland and songwriter Lynsey de Paul.
[8] In the late 1970s, Cameron was approached by Alain Boublil and Claude-Michel Schönberg to arrange and conduct a concept album based on Victor Hugo's Les Misérables.
Initially staged in Paris, France, by Robert Hossein, it was then produced in the UK by Cameron Mackintosh and the Royal Shakespeare Company, directed by Trevor Nunn and John Caird.
[5] He produced and arranged Lux Aeterna, a choral setting of Elgar’s Nimrod, and conducted his own composition, Missa Celtica, recorded with the English Chamber Orchestra and the Choir of New College Oxford.