As jazz musicians formed a majority of them, this non profit organization clearly reoriented its activities towards jazz during the eighties. The main goal of the Organization is the promotion of the current Belgian jazz scene and its musicians. It is now being subsidized by the Ministry of Culture of the French Speaking Community of Belgium.
Members are jazz musicians from the whole country and jazz aficionados.
Mostly acoustic jazz, and recently, solo performances. See Midis Jazz page . Occasionally, the Lundis d'Hortense is being consulted by concert and festival organizers in Belgium. Since 1996, the Lundis d'Hortense participates in the mega jazz event called the Brussels Jazz Marathon . It is a week end of jazz taking place in many cafes in the centre of Brussels.