Linbury theatre

It was so dark, my friend noted, you could have had sex or done a Hitler salute. No stage lights, no stair lights, no desk lights, no door lights, no usher lights, no exit signs. The few wisps of illumination that did steal in created colossal shadows, giants freeze-framed on the walls. In these snatches the wooden ribcage interior of the Barbican Hall looked demonic. A few photons lit up the Autechre boys, Rob Brown and Sean Booth, who flickered like blue flames rising from a hob. A few more nudged into view the ceiling that had become a vast charcoal grisaille. When, occasionally, someone left, the tiny glowing portal

The Royal Opera has come over all baroque. In the Linbury Theatre, they’re hosting Irish National Opera’s production of Vivaldi’s 1735 carnival opera Bajazet; unsurprisingly, its first appearance at Covent Garden. Upstairs in the big room, they’re doing Handel’s Theodora: premièred at Covent Garden in March 1750 and then ignored by the Royal Opera and its forebears for the next 272 years. In fairness, it isn’t actually an opera. It’s an oratorio, and it was a flop. Handel attributed its neglect to the fact that the story ‘is a virtuous one’, though the music’s emotional appeal is uncompromising, and the basic morality — Christians and virtuous pagans vs a tyrannical