The progressive-minded Belgian impresario, who gave strong support to such diverse artists as Kaija Saariaho, Mark Morris, Pierre Boulez, and Peter Sellars, died yesterday in Brussels, at the age of seventy. Ultimately, administrators prove their worth through their commitment to new work, and in this respect Mortier deserves enduring thanks: each time L'Amour de loin, The Death of Klinghoffer, or L'Allegro, il Penseroso ed il Moderato is performed, he will be remembered.
More: The New York Times obituary, by Zachary Woolfe.