"The first time he went to Buenos Aires, he had played his final concert and sat in the car outside the theater before going to the airport.
"People clutched at him through the opened windows. They were crying, thrusting gifts on him, gifts on which they hadn't even written their names. It was one of the few times I saw him moved to tears."
The day of the funeral, outside the cathedral, a black man, who had come down from Harlem, said: "I'm just here to bear witness. A man passed through and he was a giant."
But how many Americans know Duke Ellington's legacy? Do you?