AC/DC’s 16th album arrives after founder/rhythm guitarist Malcolm Young’s departure with dementia, and drummer Phil Rudd’s headline-grabbing charges for drug possession and making threats to kill. It’s easily the greatest turbulence the band has experienced since singer Bon Scott’s death in 1980. And yet, with Malcolm’s nephew Stevie stepping in, the music sounds as eerily untroubled as ever. Indeed, Rock Or Bust sounds like every AC/DC album since Back in Black: rock-solid rhythms over which guitarist Angus Young and gruff-voiced Brian Johnson do their stuff. Most songs have big, Highway to Hell-type choruses, three have “rock” in the title and many feature rude double entendres. Hard Times isn’t about recessionary economics, Emission Control isn’t a stand against global warming and standout Play Ball isn’t about sport. Not many of the tracks are as good as that one, but they all rock amiably and efficiently, and it’s hard not to marvel at their ability to keep it up.