Which 1919 Georgia O'Keeffe painting is known for its vivid musical color fields?

Georgia O'Keeffe’s 1919 painting is titled Blue and Green Music.

The work uses bands and curves of saturated blue and green to suggest rhythm and movement without showing a literal musical instrument. O'Keeffe was fascinated by the possibility that visual art could communicate sensations similar to music. This idea appears in several of her early abstract paintings.

Blue and Green Music belongs to a period when she was developing a highly personal form of abstraction. Its flowing shapes do not represent a specific melody, and the painting is not a portrait of a performer. Instead, color and form carry the expressive role that sound carries in music.

The painting is sometimes mixed up with O'Keeffe’s other music-related titles, including Music, Pink and Blue No. 2. Those works share an interest in synesthetic ideas, but their titles and compositions are different. Blue and Green Music is held by the Art Institute of Chicago.