Alligator Years expands upon the charming surfy haze of Twinsmith’s 2013 eponymous album and “Honestly” single, with the band pushing themselves musically while moving toward a more dynamic pop sound. Each diverse track is imbued with an individual voice and style, and ranges from propulsive, melodic rock (“Seventeen”) to buoyantly playful pop (“Alligator Years”) from soaring, sing-along retro pop (“Is It Me”) to sumptuous, evocative new wave (“Constant Love”); from shimmery, summery pop (“Said and Done”, “Haunts”) to moody, slowburning ballads (“Dust”, “Carry On”).