The Cello Player Thomas Eakins (1844-1916)

The picture has something of this: music, musician, violin, instrument, people, violinist, cello, man, concert, classical music, wear, stringed instrument, performance, bowed stringed instrument, portrait, orchestra.
Perhaps it’s a painting of a man with a long beard sitting in a chair with a contraption in his hand and holding a glass in his other hand.