Thanks, John and Akira, for the comments.
That is a street piano in the second shot. It is a place that I am very familiar with, having shot many photos there over the years. This was the first time I saw the piano. I was approaching the gentleman playing the piano from the right. He was aware of my presence as I passed by him. I stopped and turned around and raised the camera to my eye and he turned and looked back at me. I got the shot and we waved to each other and off I went. Aklra, I shot this with my Coolpix A, not the Df, so I am pretty sure he heard nothing. The place looks deserted because I shot this early in the morning. It is a small, cool. little park in the middle of downtown Dallas.