Reputedly, music is the medicine for sorrow and the companion to joy—“laetitia comes,” as the Latin has it. What’s more, it has the miraculous ability not only to make time stand still but to conjure, simultaneously, rapid flights of emotion. Music, in short, lays bare our humanity, distilled to its finest. Such is the theme—more or less—of Will Liverman’s “Dunbar/Moore {…}