The Button Factory plays host to the first night of Battles’ European Spring tour tonight, in support of their latest album La Di Da Di. Having sold out not too long after it was announced last year, the desire for the trio’s return to Dublin is immense. Tonight’s sole support, Kaitlyn Aurelia Smith takes to the stage first with an impressive array of synths, sequencers, connective wires and blinking lights, evocative of a young Delia Derbyshire at the BBC radiophonic workshop. She begins with a series of robotic loops, which advances into Laurie Anderson territory as she distorts her vocals through…