It would be fun if she sees Dr. Tesoro burst into a heart song of his own as part of her therapy.
He might have no choice but to give her more of a window into his personal life than he’d like!
On the one hand, her powers could well be what drives Zoey to seek out therapy, and therefore be part of what she opens up about right away.
On the other hand, saying that she sees big musical numbers that come straight from the hearts of those around her prompting problems for her to solve is a big thing to drop on somebody right off the bat, even a therapist.