“Welcome to London’s Royal Opera House, where Opera Dots, a workshop for toddlers, aims to build a future fan base, one hop at a time. Beneath an elegant iron-and-glass ceiling, a group of young guests giggle on a multi-colored play mat as they mimic a costumed performer singing and dancing her way through Hansel and Gretel. Some of the children do boisterous impressions of a scary witch, luring the innocent pair into her house of sweets.”