“Supergrass have always offered a pretty fresh take on the grand traditions of UK rock (big guitars, big melodies, sly humor, caricatured self-confidence), from their early days as three-chord ruffians, to their brilliant sophomore effort *In It for the Money*, to the Stonesy swagger of their self-titled third album. Their fourth, *Life on Other Planets*, is a 40-minute tour of 70s British rock, bu”