Career
At the age of twelve he was arrested by the Gestapo and sent to the concentration camp Drancy, at fifteen he was chosen to represent the Lycée Janson-de-Sailly at the Concours Général of philosophy. Then he stopped his musical career for health reasons and turned to Masonic research. A Freemason since 1963, he belongs to the Regular Grand Loge of Belgium and to the Swiss Grand Lodge Alpina.
2076 (United Grand Lodge of England) from which he demitted in 2014.
He wrote Les Débuts de la Franc-Maçonnerie à Genève et en Suisse (Slatkine 1994), many entries of the Encyclopédie de la Franc-Maçonnerie (Pochotèque 2000), Réalité Maçonnique (Alpina Research Group, Lausanne 2007) and some 150 papers issued in French, English and German masonic magazines. His book Une certaine idée de la franc-maçonnerie, was published September 2008 by Dervy, Paris, and Le rite en 33 grades - De Frederick Dalcho à Charles Riandey, in September 2011 also by Dervy.