I caught the fully fleshed-out Hammydown in a South Amherst basement Monday night, where frontwoman Abbie Morin, now joined by Joshua Speers on bass and Jacob Burnstein on drums, delivered a forceful and rocking set. I’ve seen Morin perform a handful of times over the past couple of years, and each time she sounds radically different, showing big strides of growth — morphing from a promising solo act to one of the most compelling bands around.
