'Tristan und Isolde.' 'Ghiselle,' a work left unfinished by the composer and completed by several of his pupils, was produced in 1896 at Monte Carlo. Although by no means upon the same level as 'Hulda,' 'Ghiselle' also contains much fine music, and will doubtless be heard of again. Leo Delibes (1836-1891) made no pretensions to the dignity and solidity of Cesar Franck's style. He shone principally in ballet-music, but 'Lakme' (1883), his best-known opera, is a work of much charm and tenderness. It tells the story of a Hindoo damsel who loves an English officer. Her father, a priest, discovering the state of her affections, tries to assassinate the Englishman, but Lakme saves his life, and conveys him to a place of concealment in the jungle. There she find that his heart is set upon a beautiful English 'miss,' and, in despair, poisons herself with the flowers of the Datura. Delibes's music never rises to passion, but it is unfailingly tender and graceful, and is scored with consummate dexterity. He has a pretty feeling too for local colour, and the scene in Lakme's garden is full of a dreamy sensuous charm. 'Le Roi l'a dit' (1873) is a dainty little work upon an old French subject, as graceful and fragile as a piece of Sevres porcelain. 'Kassya,' which the composer left unfinished, was orchestrated by Massenet, and produced in 1893. In this work Delibes attempted a tragic story to which his delicate talent was ill suited, and the opera achieved little success. Delibes is a typically French musician. Slight as his works often are, the exquisite skill of the workmanship saves them from triviality. He made no pretensions to advanced views, and though he occasionally trifles with guiding themes, the interest of his works rests almost entirely upon his dainty vein of melody and the finish of his orchestration.