Sometimes you can't help but join in

At St Pancras International they have several pianos chained up, but free for the public to play. I've been surprised at how good the overall level of talent is and often stop a moment to listen. Tonight this chap decided to entertain those waiting for relatives arriving on the Eurostar but was consistently assisted surreptitiously by the chap on his left, who was I suspect homeless. The busker didn't seem to mind the uninvited dueting however.