I may be of the eye, in order I am pie, in my center there is a star, I keep medics where they are. What am I?

Question

They say I came from Africa.
I suppose that may be true.
But the type I am was mostly played,
In a place where grass is blue.
Of wood and pearl, skin and steel,
You could say I am high strung.
My neck looks like a ladder,
With brass on every rung.
What am I?

Answer 1

An Apple ( apple of someone`s eye, apple pie...)