In 1991 Philippe Herreweghe founded the Orchestre des Champs-Élysées. He named it after the theatre to which it was initially affiliated. Its aim: to perform classical and romantic works on the instruments used when the pieces were written. In order to achieve a convincing sound, Herreweghe demands original instruments or, if necessary, has them reconstructed, studying the makeup and placements of period orchestras. After starting with Haydn and Mozart, he has now advanced with his work to Gustav Mahler and Anton Bruckner.