For much of the 2010s, Tim Presley—a.k.a. White Fence —was keeping pace with Ty Segall and Thee Oh Sees ’ John Dwyer for the title of busiest psych-rocker in San Francisco. Across a steady stream of albums, Presley gradually emerged from a bedroom-brewed lo-fi haze to pursue a more radiant art-pop vision. But as Presley would later admit, this furiously productive period can’t entirely be chalked up to a burst of divine inspiration; his most fruitful years also ran parallel to his opioid addiction. He has described his experience as a total withdrawal from everyday life and relationships, a time when he’d “just sit and write music.” Then, once he committed to getting clean, in 2015, it “felt like Samson, the strong man, got his haircut.” His creative abilities were decimated: “I had lost my power to create music,” he explained, “and that scared the shit out of me because that’s the only thing I know.” No score yet, be the first to add. That sense of what now?…