"My Latin is very rusty," he replied, but he glanced at her face and thought he saw the hint of a tease there. "I can't dance a quadrille like I used to. I used to be able to play harmonica."
So this was the way to Urania's heart. Open the heavens to her and she's yours. He didn't want to overstep, though, so he waited for her to give him a more overt invitation.