Quinkhard, Julius Henricus – Een violist en een fluitist musicerend, 1755 Rijksmuseum: part 1

The picture has something of this: people, man, two, sit, violin, seat, music, woman, weapon, furniture, instrument, wear, veil, group.
Perhaps it’s a painting of a man playing a violin and another man sitting at a table with a sheet of paper in front of him and a violin.