What medium did Georgia O'Keeffe use for her 1918 work Music, Pink and Blue No. 2?

Georgia O'Keeffe used oil on canvas for Music, Pink and Blue No. 2. The 1918 work belongs to her early period of abstract painting, when she translated sensations and ideas into flowing shapes and color relationships rather than depicting a clearly identifiable object.

O'Keeffe's early abstractions were important in the development of American modernism. Their sweeping forms and intense colors helped establish her reputation after Alfred Stieglitz exhibited them in New York. Titles such as Music suggest that she was interested in visual equivalents for rhythm, sound, and movement, although the paintings remain visual works rather than literal illustrations of music.

Oil paint allowed O'Keeffe to build saturated areas of color and smooth transitions across the canvas. This is different from some of her other works on paper, including drawings and watercolors. The word “music” in the title refers to the painting's conceptual association, not to a musical performance or a recorded composition.