The writers of Matt Cardle’s hit, “Amazing,” are suing Ed Sheeran for copyright infringement because his much bigger hit, “Photograph,” sounds too much like their song. Here’s a mashup that proves not a whole lot, but you’ll get the idea. I’m also not automatically impressed by claims about how many notes two songs have in …

The jury got it right. Whereas an internet full of ordinary observers from what I’ve seen mostly didn’t. Nor did the ordinary observer friends that I personally polled on the matter. We refer to “ordinary observer” by the way as a standard sometimes used to help define infringement, as in “Does the allegedly infringing work …