The brains in the family

I've been thinking about this ever since reading Jill Taylor's MY STROKE OF INSIGHT.
My brother Tim had a lemon-sized clot removed from his brain after a fall down a flight of stairs at a party in college.
My dad Lloyd died of a brain tumor.
My brother Rob had a stroke at the age of 44.

I don't know what it all means, but there has to be some kind of connection.
I remember the surgeon asking if Tim had been a musician. "No," I told him, "will he be one now?"
I think about "jumping the corpus callosum"
I think about the brains in the family.