He looks over as Lan Wangji starts to play. It's a curious sound, not quite like any instrument he's heard before, either in tone or how the music itself sounds.

Now, of course he hardly hesitates to interrupt speech if he feels the need, but there's nothing to rebut or scoff at in music, so he just carefully shifts, mindful of the rabbit still in his arms, and stretches out comfortably on the floor, settling Xiaoxue on his chest and absently stroking his head with his fingertips along to the music.