Mireille Dumont-Lemasson has been an amateur musician and pianist since her adolescence, and she has always cultivated the pleasure of playing alone or with others. She has participated in three choirs over the years, and now sings with the Continuo vocal ensemble in Montreal. In 2013, she enrolled for the first time in a week-long music camp at CAMMAC, and since then, she has had the pleasure of participating with her grandchildren on several occasions.

Over the course of her professional career, Mireille has accumulated more than 30 years of experience in the Quebec health and social services network in the management and evaluation of services. After retiring in 2006, she created a consulting firm specializing in this field. Since 2014, her volunteer involvement has multiplied, particularly with community organizations dedicated to social integration and the outdoors.