Keith never expected Cathryn to be so interested, he looked up at the clock and noticed that it was midnight and said, "Cathryn, it's late. You need to go to bed and get your rest." Keith could see the look of disappointment on her face. So he quickly explained, "There will be all sorts of different music. Such as the Brazilian Samba dance. That's one of the most popular dances in the world. There will also be the tango, which I am sure you are familiar with? I never asked you, do you like ...