With its clear, formal concept the Gilles Gobeil's "Le Vertige Inconnu" follows the tradition of "musique concrète".

"... here, on the roof of the world, I feel a shadow of uneasiness ... It's not at all the height, nor the kind of suction exerted by the abrupt dephts and its emptiness which troubles me. It's an altogether different emptiness which affects an altogether different senseŠ the essence of solitude ..." (Paul Valéry, Le solitaire).

"Le Vertige Inconnu" ("The Mysterious Vertigo") was produced in 1993 at the studios of the Groupe de Musique Expérimentale de Bourges (GMEB, France). It premiered in June 1993 at the 23rd Bourges International Electroacoustic Music Festival (France).

"Le Vertige Inconnu" received the 1994 Stockholm Electronic Arts Award (Sweden) and was selected for the 1994 World Music Days (Stockholm, Sweden) and the 1994 International Computer Music Conference (ICMC'94) in Denmark. "Le Vertige Inconnu" was commissioned by the Groupe de Musique Expérimentale de Bourges (GMEB), with the assistance of the Canada Council. The work was released on the compact disc of Gobeil's work "La mécanique des ruptures" ("The Mechanics of Cleavage") on the empreintes DIGITALes label (IMED-9421) in 1994.