Once upon a time in a park.
My son, Sam, plays guitar. He plays it rather well, and he doesn’t have stage fright, so it’s lovely to watch him perform.
About two years ago, in the summer, Sam was playing with the School of Rock — a franchise of music schools that sprung up all over the U.S. after the movie came out. He, and the rest of the “House Band” — the school’s top musicians — were performing outdoors, in a park that was located by the…