Mrs. Thomas Lincoln Manson Jr (Mary Groot) John Singer Sargent (1856-1925)

The picture has something of this: dancer, people, wear, portrait, costume, music, ballerina, woman, performance, dancing, ballet dancer, dress, musician, ballet, theater, opera, skirt.
Perhaps it’s a painting of a woman in a black dress sitting in a chair with her hand on the back of the chair and looking off to the side.