It took until the fourth song of their set for Suuns to take off. Lurching into “PVC”, the Montréal quartet gelled. Monolithic drums, pounding, relentless bass guitar and slabs of sheet-metal guitar rolled off the stage. Harnessing the power of heavy metal, they’d achieved escape velocity. More powerful than on album, the unassuming-looking Suuns made a compelling case for their stripped-down, post-Krautrock rock.