Soprano Jessye Norman leaves the Ed Sullivan Theater in New York on Thursday after taping the Late Show with David Letterman. Ray Tamarra/WireImage hide caption

itoggle caption Ray Tamarra/WireImage

In a conversation aired on WBGO, Jessye Norman credits the study of jazz with her understanding of song interpretation. Carol Friedman/Courtesy of the artist hide caption

itoggle caption Carol Friedman/Courtesy of the artist

A sampling of one listener's cherished classical Christmas albums from a few years back. Mito Habe-Evans/NPR hide caption

itoggle caption Mito Habe-Evans/NPR