Whenever the weather is warm enough, usually spring through fall, we leave a window open at night to catch the fresh cool air. We also catch the sounds of the city, including airplanes overhead, dogs barking, parties, and many times, a man who walks down the street singing. I don’t know who he is or where he’s going, but he has a lovely voice. He sings loudly enough to be heard clearly if one is listening. One day maybe I’ll get a chance to thank him for his gift to the neighborhood.