The country's national opera is Vedontakal Vrop (The Secret Unmasked) by the composer Z. Leblat who also wrote the libretto. The opera is described in Why Come to Slaka? as "one of the highest treasures of the great Slakan tradition." The opera, which in Rates of Exchange is said to last about five hours, was originally performed before Bishop 'Wencher' Vlam and his guests at the Bishop's castle, the Cast'ullu Vlam, in the city of Slaka in 1770. The score was then lost for 200 years but was rediscovered, missing only act 3, in 1970. In Rates of Exchange, the restored opera was premiered in 1982 but in Why Come to Slaka?, the premiere was said to have been in 1984. In either case, Bradbury set the event in the Oper Prole'tanuu Slakam, under the baton of Leo Fenycx, in a season which also included works by Andrew Lloyd Webber and Leoš Janáček. Bradbury goes on to describe the work to be considered by Slakan scholars to have been an important inspiration for the operas of Mozart and Rossini. The traditions of Leblat are maintained by the annual "Z. Leblat Musicology Festivi" which is held on a mountain near another Slakan town, Glit.
