Trav S.D., author of the book "No Applause, Just Throw Money: The Book That Made Vaudeville Famous," will discuss the common origins of opera and vaudeville and some American impresarios who straddled both worlds, such as Barnum, Keith and Albee, Oscar Hammerstein I, Tony Pastor, along with singers like Enrico Caruso, Lillian Russell, Fay Templeton, and Nora Bayes. Trav S.D. will also discuss current trends in opera and the revival of song in taverns. Free.