With the very first note, Mom was standing by the piano. As “Somewhere” from West Side Story took shape and became familiar, Mom started singing with such feeling, such strength, that it brought tears to my eyes. Here was the exuberant mother I was missing. I’d taken Mom to my friend Hannah’s house for a “concert.” Hannah teaches piano, and though Mom can’t learn music anymore, I wondered if she would enjoy singing along to songs and music that she knows. The answer was overw