When young Candide's marriage offer to a baron's daughter backfires, the naïve student of optimism is hurled into an eye-opening journey around the globe, discovering the horrors of existence at every step. Turning Voltaire’s Candide, a stinging blast against tyranny and feigned moralising, into toe-wiggling musical theatre is a crazy idea. Bernstein revised his operetta countless times before settling on the final version. The Grange Festival’s 2018 semi-staged production commemorates the composer’s 100th birthday.