Who's on first?

I'm here working away in my studio with the windows wide open and all I can hear is the elementary school baseball game going on behind my house. It sounds like an exciting game, but a little disorganized. The loudest voice out there is of the Teacher who keeps yelling "Who's on First? Who's on First?" I don't think he knows how classic he's being right now...

A "Loreti Family Favourite"... Abbott and Costello's "Who's on First"...