Leonid Fyodorovich Myasin, better known in the West by the French transliteration as Léonide Massine, was a Russian choreographer and ballet dancer. Massine created the world's first symphonic ballet, Les Présages, and many others in the same vein. Besides his "symphonic ballets," Massine choreographed many other popular works during his long career, some of which were serious and dramatic, and others lighthearted and romantic.