Pat Benatar's voice and star power is intact, at least if you asked any of the 900 or so fans who filled three-quarters of Memorial Hall in Plymouth on a Wednesday night to hear the rocker and her husband/guitarist Neil Giraldo deliver a 90-minute acoustic show that was sizzling throughout. Benatar had her biggest days on the charts back in the 1980s, when she seemed to be the perfect embodiment of what MTV and a generation of teenagers thought a female rock star should be; a [...]