Reconfigured as a French-American duo, Powerdove is releasing its fifth album and it’s a dazzling balance of diaphanous melodies and explosive arrangements, at once poppy and in-your-face experimental. Conceived on the Aegean Sea, the staggeringly beautiful songs of Machination suggest high-precision mechanisms that have been expertly tweaked to register the pulse of a hypersensitive and mineral form of songwriting.