In getting to parts that other arts don’t reach, outdoor shows attract audiences that genuinely represent the wider population, as a new study finds The weather may still be a bit iffy, but it’s unlikely the art will be of dubious quality when the annual Greenwich and Docklands international festival (GDIF) begins this Friday. As ever, it’s a lovely programme, and it’s mostly free at the point of delivery, as well as encompassing two of my favourite annual events: the delightful Greenwich Fair this weekend, and Dancing City, which takes tplace at Canary Wharf next week, offering a joyous paean to the pleasures of the body in an area of the city dominated by high finance.