The ensemble cast of Once sets the tone of the evening even before the show starts. As the audience enters the Bernard B. Jacobs Theatre, the cast — with instruments in hand — have already begun their work with a pre-show jam session. The audience is invited on stage for an up close and personal view as the traditional tunes segue seamlessly into the show's opening number. In Part 2 of this series, Playbill captures the cast of Once as they perform a Slovakian folk song. To see Part One, click here.