With June inevitably comes summer music. We’re not just talking about the catchy pop singles you blast on your car radio with the windows rolled down, but also the songs that seem to drift from the speakers during those late-night talks with your friends on somebody’s porch. Washington D.C.’s The Fairline Parkway exists in that dreamy space inhabited by bands such as Yo La Tengo and Grizzly Bear, where slide guitars mingle with the occasional…