Kevin Burns reviews ‘A Visibility Matrix’ (16 April – 8 June) at Void Gallery, Derry.
Highlanes Gallery and Droichead Arts Centre, Drogheda, 24 April – 21 June 2017 For Vitruvius,  successful architecture combined “firmness” (structural integrity), “commodity” (function) and “delight” (aesthetic pleasure). While these remain core requirements, contemporary conceptions of the discipline tend to be more fluid. ‘This is Not Architecture’, a two-site group exhibition in Drogheda, animates thinking around the nature of its subject, probing its conventions through considerations of similarity and difference. Curated by Highlanes director Aoife Ruane, the exercise is enhanced by the contextualising environment of the gallery, located in a repurposed Franciscan church. Built in 1829, it combines stained-glass windows, gothic arches, cast-iron columns, a marble altar with late Celtic Revival tabernacle door,