@Stargirl222 Oh if he was impressed then that is a good sign, but again don’t read to much into interviews I made that mistake last year and thought I would have several options and got waitlisted at literally every school I applied to. I think Peddie is a school that you will definitely have a strong chance at just based off their acceptance rate and large percentage of day students which means they will constantly be looking for geographic diversity (particularly international diversity). Do you have dual citizenship by any chance because that will greatly improve your chances? Deerfield is again, a much more selective school, but I still think you have the criteria that could get you accepted, again it COULD, but that doesn’t necessarily mean it WILL.
On another note, I saw that you are applying to Milton and came across this interview with an AO (actually the same one that interviewed me) and I found it incredibly helpful for both Admissions at Milton, but also at selective boarding schools in general, here is the link:
https://www.youtube.com/watch?v=Zz5C6p7S8rY (Part 1 of 2)
Were you by any chance in touch with the coaches or music teachers at any of the schools? and if you were, did you send them a “demo reel” for piano or for sports?