Paulo Szot, Marin Alsop, and the cast of Ravinia’s presentation of Bernstein’s MASS (Photo: Ravinia Festival) In the hour leading up to the premiere of the Ravinia Festival recording of Bernstein‘s MASS on PBS‘s Great Performances, we invite you to join us for this panel, hosted by WFMT General Manager and Vice President George Preston. In a stream starting at 8:15 …