This week’s theme: Jazz Singers, American Songbook. Pretty self-explanatory, don’t you think? Featured artists include Ella Fitzgerald, Oscar Peterson, Dinah Washington, Quincy Jones, Helen Humes, Helen Merrill, Clifford Brown, Anita O’Day, Billie Holiday, Ben Webster, Chet Baker, Beverly Kenney, Johnny Smith, Lous Armstrong, Diana Krall, Stacey Kent, John Coltrane, Johnny Hartman, Joe Williams, Count Basie, Rosemary Clooney.