Blu DeTiger is the kind of artist who doesn’t ask for permission to take centre stage—she just picks up her bass and commands it. For a long time, bassists were sidelined, the steady undercurrent beneath the flash of lead guitars and vocalists, but Blu rewrites that narrative with every slick groove. Her Australian debut tour, with stops at intimate venues and a spot at Changing Tides Festival, feels less like a formal introduction and more like a homecoming to those who’ve already felt the pulse of her sound. Born and raised in New York City, Blu has the kind of grit that only comes from playing your first gig at…