Rebecca, with a knapsack full of her school stuff on her back and a duffel bag full of her personal possessions hanging from her elbow, is pounding on the door of the Blake house. It's spooky, but that's kind of why she picked it, so she's not going to let it stop her from hammering on the door till her arm falls off or someone answers it.
"He said you're not unsafe at home; he mentioned the Capris came over and then paused and then said the plan you agreed to was that you'll stay with them, in a way that strongly suggests his head was messed with so that he only remembered there was an explanation and not what it was or why he found it convincing. He says he'll tell the Capris you're here, and he's glad you're under a roof, and you can come back to get anything you forgot or visit your siblings for dinner as you like, if your job responsibilities permit; and he says you have a bed there if things don't work out for you here."
Ooh, an audience. Rebecca's mostly improvising, she doesn't have very many pieces memorized and her sheet music is all upstairs, but she's good at improvising, Mozart's-party-trick style.
Eventually: "I lugged a bunch of sheet music along with me if you wanna hear anything I'm not making up as I go."
"Oh, if you like! I wouldn't begin to know what to ask for, though, I zero in on the Spice Girls whenever I'm picking through my aunt's music collection."
Then she trots upstairs to go get her bag of sheet music since it should live at the piano anyway. Is Rosy a Phantom person, she seems like possibly a Phantom person.
It takes her a bit to recognize Phantom but once she does she is, indeed, very happy about it.
Rebecca needs to get up to pee after Prima Donna but then she will come right back if Rosy wants an entire solo Phantom-in-concert.