What is success? For Allen Toussaint, it's been a career that's lasted for over fifty years in which he's created some of the most memorable music ever committed to tape: "Mother-in-Law." "Whipped Cream." Lady Marmalade." "Working in the Coal Mine." "Southern Nights." "Yes We Can Can." The latter song, a hit for the Pointer Sisters, took on added significance when it became associated with Barack Obama's 2008 U.S. Presidential campaign. As writer, producer, vocalist and arranger, Allen