Brooklyn/Boston hybrid Happy Lives is a shape-shifting monster of sorts – and we mean that as a compliment. Sometimes a duo, sometimes a trio, they’re part band, part computer: thundering drum machine-wrought vibrations march tracks along. In "Slacks and Slippers" (streaming below) off 2012’s self-titled debut, this pulsing drive mingles with garagey guitars to craft some kind of 90s alt sound. You can catch them live at Free Candy tomorrow (September 7). – Read Corinne Bagish interview with the band here.