Mozart & Salieri
Grimeborn, Arcola Theatre, until 13 August
I have been a fairly conscientious reviewer of Dalston’s Grimeborn festival for the last eight years. The name is less suitable now than it was. The Arcola Theatre, where the operas are performed, is now only a stone’s throw from Dalston Square, with its chic apartment blocks and bars and the resplendent C.L.R.