There's some chance that Nathaniel will notice the family resemblance, but it's not all that likely, and she's getting the impression that Micaiah is only up for small steps, if anything, towards being able to meet his brother outright.
"The big choirs don't use the regular practice rooms, they have larger ones with a few extra seats for an audience. I think Baruch's time slot starts in -" She glances at the clock. "An hour and a bit."
"Well, I was reading about the reign of the Archangel Gabriel Aaron and the angelica Susannah, but now I'm all distracted," she teases comfortably.
These notes aren't secret; she doesn't orient them so he can't read them. They're commentaries on how the Archangel and angelica in question handled various issues during their tenure, whether Isabella thinks that was the best idea and why, and comparisons to other situations at other times.
Then she sits up, puts the stuff on the nightstand, and says, "Choir time."
They head for the choir room, where the boys and girls are assembled, grouped by voice type, and warming up for the day. Isabella find herself and Micaiah seats behind some parents who are also watching.
She listens. She likes children's choirs. Less polished but with a certain sweetness to their voices.
Isabella smiles weakly. Nathaniel's probably been given a rundown of angel song signs by now; she gestures mind your pickup before he's at risk of missing his cue for the next song.
Isabella flicks her attention between Micaiah and Nathaniel every few measures, trying to figure out how to mediate if there's an interaction apart from Nathaniel fleeing the room when practice concludes.
"It'll be okay," she murmurs in his ear, almost inaudibly. (It approaches sacrilege to interrupt music, but she can be very, very soft.)