He shows her a chord, guides her hand, and she grins.
"I remember this!" The chord he shows her is followed by another from memory, and another, until she has her own melody. Halfway through she stops and looks at him; he seems perplexed, but he's smiling again, and that's nice.
"Will you play?" He looks to the window for a moment, watching the stars pass, and then nods, moving further down the piano. He presses a key, and then looks to her, waiting. She presses a similar key in response, and they smile at each other.
They begin to play.
Later as Madotsuki trudges through snow, crunch crunch crunch to the igloo to the Pastel Shoal, she hums to herself and wraps her scarf tighter.