Arctic Monkeys, “Tranquility Base Hotel & Casino” (Domino)- No-one could ever accuse Alex Turner and his cohorts of choosing to play safe and rest on their laurels, and the Arctic Monkeys restless musical explorations continue with “Tranquility Base.” The contents are certainly a far cry from the energised indie rock which became their trademark when their chart-topping debut album, “Whatever People Say I Am” catapulted the Sheffield outfit into the limelight a decade or so ago, drawing on influences as diverse as “Pet Sounds” era Beach Boys and noted French maverick Serge Gainsbourg to create freshly minted gems such as “American Sports,” “Four Out of Five” and “The World’s First Ever Monster Truck Front Flip.”