Lionel Sow studied vocal studies and choir direction at the Conservatoire National Supérieur de Musique in Parijs. Since 2011, he is choir director of the Chœur de l'Orchestre de Paris. Since 2017, he is also connected to the vocal department and choir direction of the conservatory of Lyon. Lionel also works regularly as guest conductor for professional orchestras and choirs in France and beyond. In January 2011, he was appointed as Chevalier des Arts et des Lettres.