GARGANTUA Ash Grunwald (Shock) While the Living Dead’s Scott Owen and Andy Strachan might provide the “bang and clang” as the hired guns for Australian guitar maestro Ash Grunwald’s latest project, he’s the one everyone in Australia has been making a noise about for well over a decade. And while Grunwald, who has done stints as a radio DJ, is a capable enough vocalist, what he lacks in the wizened old voices of blues greats, he makes up for with a steaming repertoire of guitar licks