Tunica Elementary School fourth-graders, from left, Alysia Ware, Kendrenesha Pollard, Brian Franklin and Elajah Davis sing their blues song while keeping time with their Boom Whackers, a form of ...

As part of our series about students and teachers, musicologist Bruce Nemerov describes the way that one song is recorded by several different musicians in different decades of the 20th century. The ...