After studying musical composition and dramatic art at the Conservatoire de Paris, he composed and arranged for many performers since 1966, including Johnny Hallyday, Gilbert Becaud, Claude François, Michel Sardou, Jean-Jacques Goldman, Enrico Macias, Richard Clayderman, Hervé Vilard, Brigitte Bardot, Françoise Hardy, and Charles Aznavour.
He was an orchestra conductor from 1994 to 2004, as well as composer or arranger of film music with Pierre Bachelet, Michel Polnareff and many others.
He composed and arranged many film scores, such as Un linceul n'a pas de poches (including the multi-million seller "Dolannes Melodie"), Emmanuelle, Quelques messieurs trop tranquilles, Delusions of Grandeur, Men, Women: A User's Manual, Asphalt Warriors, and Podium.
His composition called "Lover's Theme" was featured in a viral shock video titled 2 Girls 1 Cup in 2007.
[1] Roy held a position in SPEDIDAM, an artists' rights management company, until his death in 2009.