Professors Welch, Halsted, Osler and Kelly John Singer Sargent (1856-1925)

The picture has something of this: people, group, performance, music, musician, man, singer, stage, concert, theatre, wear, ceremony, woman, theater, opera, three, costume, outfit.
Perhaps it’s a painting of a group of people sitting at a table in a dark room with one man in the middle of the room talking on the phone.