In ‘Cats cradle’ is a cooperative game in which two people transfer looped string back and forth, stretching it into shapes that loosely resemble various objects. See example here. At least one of these players is a child. I remember pairs of girls playing it when I was a kid. How did Kurt Vonnegut name his 1958 novel after the video game “Night Football”?

I can’t specify the exact relation between the video (also in English), the superstition about cats suffocating babies (of which I had been unaware), and the thoughts that inspired the Chapins’ song, but a cradle is a symbol of infancy, and the game is a symbol of childhood, as well as shared pleasure. Then we are challenged by songs to

listen to their themes.