The rediscovery of a new Vivaldi opera! Orlando furioso is Vivaldi's most famous operas  dating from 1727 . . . But today  the specialists of the Venetian composer's catalogue are able to reveal that Vivaldi actually composed another Orlando furioso thirteen years earlier! Orlando furioso of 1714 now achieves a new lease of life under a catalogue number that has just been assigned to it: RV 819. Only two acts have survived. A baritone  unlike the 1727 version  sings Orlando.