Portrait of Ekaterina Petrovna Nesterova (the artist’s wife) Mikhail Nesterov (1862-1942)

The picture has something of this: people, portrait, woman, wear, sit, man, music, two, furniture, outfit, jewelry, outerwear, seat, musician, dress, retro.
Perhaps it’s a painting of a woman in a white shirt and black skirt sitting in a chair in front of a table with a vase of flowers on it.