Loo, Louis-Michel van (Flemish active in France, 1707-1771) Flemish painters

The picture has something of this: people, portrait, man, music, retro, vintage, wear, facial expression, book bindings, jacket, musician, furniture, writer, light.
Perhaps it’s a painting of a man sitting at a table with a pen and paper in his hand and papers in front of him on a table next to him.