Regters, Tibout – Jan Casper Philips (1700-65). Graveur, 1747 Rijksmuseum: part 3

The picture has something of this: people, portrait, wear, woman, room, facial expression, furniture, indoors, war, seat, veil, man, museum, outerwear, sit.
Perhaps it’s a painting of a man sitting at a desk with a musical instrument in his hand and a sheet of paper in his other hand, in front of him.