His activities are based essentially in Switzerland, (intense collaboration with Swiss Radios leading to the commission for OYAMA, a piece created by "L’orchestre de la Suisse Romande" lead by Fabio Luisi, the German creation took place in the Gewandhaud Leipzig, the first US perfomance will be in Dallas), Paris (commission for a composition for Radio France, Festival Présences), Russia (Festivals in St. Petersburg, and Moscow, founding of the SPECTRUM Ensemble with Swiss and Russian musicians), and in Leipzig (commissions and productions for the MDR and MDR-Sommer). His works have been performed in the USA, Canada, China, Malaysia, Korea, Japan and throughout Europe. Three times pieces of J-L.Darbellay were included in the program of the World Music Day (Bucarest, Luxemburg and Hong Kong).
Jean-Luc Darbellay graduated from clarinet studies at the Konservatorium Bern and had composition studies with Cristobal Halffter and Dimitri Terzakis. He then attended masterclasses at the IMF Lucerne with Heinz Holliger and Klaus Huber and, as an assistant, with Edison Denisov. Furthermore, he attended seminars with Pierre Boulez and conducting classes in Bern and with Franco Ferrara.