by Leila Ugincius, Virginia Commonwealth University Music makes us happy. Listening to music produces dopamine—nature’s happy pill—in the brain. And music also makes us sad. Listening to Harry Chapin’s “Cat’s in the Cradle,” Johnny Cash’s version of “Hurt” or just about anything by Hank Williams produces tears. In fact, music can evoke every emotion known to man. But can music also make us productive? Yes, if it’s the right music, according to Kathleen R. Keeler,...