Not all superheroes wear capes. This one does, though. Janelle Monáe arrives on stage two nights into a three-show residency at Factory International’s well-appointed new(ish) home resplendent in a giant robe made entirely from fabric flowers, paired with blooming boots and headdress. It’s the same outfit she wore at Glastonbury, and the one she has been wearing as support act to Coldplay in European stadiums. The wow factor is, though, undimmed – a tropicalist take on pagan that presages a series of eye-catching costume changes. Monáe asks us to lift up our cups, and we toast “the dreams we chase”:...