After Tony Joe White died, his son took to the archives. He dug through a Franklin storage unit, finding boxes of reel-to-reel tapes with hundreds of demos from White's five-decade career as an enigmatic swamp-rock singer-songwriter. "My dad didn't have a record deal from '78 until the '90s, but he had a home studio — which was a dangerous combination," said son-manager Jody White. "He was always making music and always recording and always putting it to tape." Jody White fired off one track in an email to Nashville producer-Black Keys frontman Dan Auerbach, who talked for years with Jody White about making a record with his dad but never previously connected.