A week after an unprecedented volume of rain fell in Louisiana in August, causing floodwaters to ravage homes and businesses from Baton Rouge to Acadiana, Cezanne “Wish” Nails stood outside the long-famed, now-gutted music studio she runs with her husband, Steve Nails. At the “poolhouse” building behind her, which narrowly escaped flooding when the Vermilion River flowed over its banks and onto Dockside’s grounds, a handful of folks sat on the porch, runn...