Those don't look like the most comfortable chairs, but the back of the card says "This is the finest airport dining room in the world and comfortably setas more than 200 guests." Well, settles that.
And there's more!
"The center is occupied by a revolving turn-table supporting a baby grand from which flows soft dinner music."
Doesn't seem to be the case here. The piano seems to be demonstrating some sort of chameleon-like camoflauge that will enable it to escape.