A short-lived art movement led by the French painters Robert Delaunay, Sonia Delaunay-Terk, and Fernand Léger, and the Czech painter and graphic artist František Kupka. The term Orphism was coined by the French poet and critic Guillaume Apollinaire in 1912.  Artists associated with Orphism built on the innovations of Cubism, but emphasized the lyrical use of color as opposed to the monochromatic early Cubist work of Picasso and Braque. Orphism effectively ended as a movement with the outbreak of World War I. Web resource here.

Sonia Delaunay-Terk. The Bal Bullier. Oil on canvas. 1913. Merzbacher Collection, Kunsthaus, Zurich.