Yep, it's summer. You know it is because of how everybody's losing power in Brooklyn and because of how everybody's making summer mixes. There's Cruel Summer, there's the morning benders' ode to heat culture via Arthur Russell and Avalanches and a Donuts-dipping Joanna Newsom cover, and now there's something from Jens Lekman, who's been oh so silent aside from doing Whip ...