Thomas Eakins (1844-1916) – Singing a Pathetic Song (1881 Corcoran Gallery of Art) part 2 American painters

The picture has something of this: people, woman, man, group, two, wear, portrait, music, opera, costume, three, dress, dancing, seat.
Perhaps it’s a painting of a woman standing in front of a piano with a man sitting next to her and a woman holding a piece of paper in her hand.