Abstract art based on Cézanne's idea that all depiction of nature can be reduced to three solids: cube, sphere and cone. With the painting "Les Demoiselles d'Avignon" (1907), Picasso dramatically created a new and radical picture depicting a raw and primitive brothel scene with five prostitutes, violently painted women, reminiscent of African tribal masks and his own new Cubist inventions. Analytic cubism was jointly developed by Pablo Picasso and Georges Braque, from about 1908 through 1912. Analytic cubism, the first clear manifestation of cubism, was followed by Synthetic cubism, practiced by Braque, Picasso, Fernand Léger, Juan Gris, Albert Gleizes, Marcel Duchamp and
Pablo Picasso materials. An example is "Guitar" (1912), a relief construction made of sheet metal and wire that Jane Fluegel terms a "three-dimensional planar counterpart of Cubist painting" that marks a "revolutionary departure from the traditional approaches, modeling and carving". From the beginning of his career, Picasso displayed an interest in subject matter of every kind, and demonstrated a great stylistic versatility that enabled him to work in several styles at once. For example, his paintings of 1917 included the pointillist "Woman with a Mantilla", the Cubist "Figure in an Armchair", and the naturalistic "Harlequin" (all in the Museu Picasso, Barcelona). In