“It would hardly take a genius to notice the thick vein of heartbreak that has run through Lou Barlow’s career away from Dinosaur Jr, whether in Sebadoh, the Folk Implosion or as a solo artist. As a chronicler of unrequited love and self-lacerating introspection, he has had few peers over the past three decades. But times change and, as anybody lucky enough to have caught last summer’s streamed loc”