After completing his studies in electronics, he was hired by the Defense Nationale in 1978 to work on the final tests of the neutronic head, the detonator for the French atomic bomb.
In 1981, after working on the finalization of the first polyphonic sequencer (MDB Polysequencer), he met Jean Michel Jarre,[1] who was looking for a musical programmer capable of manipulating this instrument for his China tour that would be seen by 60,000 people.
[1] In 1987, not wanting to be involved in Jarre's Revolutions album, Rousseau created French recording Studio Mega,[1] in association with Thierry Rogen.
During the next four years, he recorded with many leading French artists of the time, including Mylène Farmer, Jean-Louis Murat, Louis Bertignac, Indochine, and Kassav.
Rousseau then followed the Greek composer to Holland for Eureka, the European community project initiated by François Mitterrand on the theme of Industry and Transport.
They consecutively recorded the music scores of La Peste by Luis Puenzo, Bitter Moon by Roman Polanski, and 1492: Conquest of Paradise by Ridley Scott.
He continued on his solo career, releasing Spirit in the Woods (1995),[3] dedicated to trees, then Abyss (1996), a concept that Rousseau refers to as "non music," an experience realised with neurologists specialised in musicotherapy.
Rousseau coordinated the electro-orchestral show starring Jessye Norman and Kathleen Battle and performed by the London Metropolitan Orchestra, directed by Blake Neely.