Long Island’s Twin Sister sounds more like a band hatched somewhere in England, with a sound that’s pure mystical embrace. The electronics are therapeutic, creating and releasing tension as the situation calls. Singer Andrea Estella is bumped up in the mix, so tracks like “Luna’s Theme” and “Gene Ciampi” take on an almost Stereolab-type glow. There are pop hooks bouncing off the walls of tunes as different as “Saturday Sunday,” “Space Babe,” and the muted grace of “Daniel.” The sound is tighter on the group’s debut album than on its previous two EPs, a graduation of sound that befits a band moving up in notice and accomplishment. The guitar licks of “Stop” fuel the duet between Estella and guitarist Eric Cardona. “Eastern Green” clings closer to traditional song structure while still evoking elements of pop, disco, R&B, and gothic charm. It’s deceptively lightweight. The album standout “Kimmi in a Rice Field” layers sound on sound yet floats to the surface.