The honk of a horn or the rumble of a truck sounds like noise to most of us. But to Lucy Fitz Gibbon, and others with absolute pitch, there are notes embedded in that noise. Psychiatry professor David Ross, of the Yale School of Medicine, explains what's known about how people acquire this mysterious ability.
Music courtesy of Lucy Fitz Gibbon. Edited by Annette Heist. Filmed, produced by Flora Lichtman