Every arts writer has an Achilles heel, and mine is dance. I can sing the right tune with musicians. In the fine arts, I’ve learnt to tell a lithograph from an etching. Conceptual art? I can play in that playground. Theatre? Right up my alley. Literary arts? I’ve got degrees aplenty. Digital arts? Like most, I’m digitally capable as a consumer, even if I don’t get the nuances of design and engineering and coding...