ジュネーヴ国際音楽コンクール
Marion was born in Marseille on Christmas Day 1938. He studied at the Marseille Conservatoire under renowned flutist Joseph Rampal, and gained the award "premier prix de flûte" when he was only 14. He later studied with Rampal at the Conservatoire de Paris (where he eventually became a professor), and gained fame after winning a prize at the Geneva International Music Competition.