A strong pop strain has always snaked through The Weeks’ raucous southern rock. Lately the Jackson, Mississippi, quartet has given even more free rein to their melodic tendencies. Their latest album, Easy, was tracked at Ardent Studios, where power pop demigods Big Star recorded their classic 1970s records. Maybe the location worked its mojo on the Weeks, because the new tunes boast bubbling R&B tempos, ringing guitars and hooks as sharp as a sharkskin suit.