Perhaps it’s New Zealand’s breezy way with pop music that bestows an extended life expectancy upon its inhabitants. The Brunettes are at the head of that class, crafting grown-up twee pop with the kind of coed cuteness that could make Mates of State all soft and sentimental. Duo Jonathan Bree and Heather Mans ย— with a Parisian coyness reminiscent of Charlotte Gainsbourg, and chants of “B-A-B-Y” that could pass for the Chiffons โ€” plus part-time collaborators possess a sophisticated and moody sound that Leonard Cohen would adore. Thanks to the group’s frequent visits to the States, we Yankees can lengthen our lifeline, too.