(Photo Credit: Cassandra Hannagan) Audience-members arriving at Sydney’s Angel Place Recital Hall for Pinchgut Opera’s latest production, Purcell’s opera “Dido and Aeneas,” walked in on a boxed theatrical space in which ensemble-members crossed and re-crossed the stage folding linen. While some audience-members were to be heard wondering what the folding signified, the repeated activity, minutes before the opera started, could {…}