In the early 1970s, Paul and Olivier set up their own record label,
Delphine Records named after Paul's first daughter, Delphine Deschodt. Delphine is a leading French music exporter and specialist in instrumental music. Besides
Jean-Claude Borelly, they discovered French instrumentalists such as
Richard Clayderman (1976),
Nicolas de Angelis (1981) and Diego Modena (1991). De Senneville and Toussaint collaborated with various French arrangers such as: Gérard Salesses, Hervé Roy, Bruno Ribera, and Marc Minier. Their main music productions were devoted to Clayderman's music. "
Ballade pour Adeline", "
A Comme Amour" and "Lettre à ma Mère" are the biggest hits in Clayderman's recordings. These melodies were originally composed by de Senneville. He composed around 400 melodies for Clayderman. Toussaint and
Jean Baudlot were his composition partners. Delphine group represents 15 companies as an advertising film and clip production company, an agency for advertising and casting actors and a casting agency as well as two modelling agencies. They have 4 recording studios in their "hotel particulier". ==Personal life and death==