When Josh Turner, the man with one of the deepest, richest voices in the business, released his sixth album, “Deep South,” a few months ago, his fans were treated to a pretty wide spectrum of country music, stretching from the traditional but contemporary sounds of “Never Had a Reason” to the rock-pop-country of “All About You.” There’s even the authentically island-flavored “Hawaiian Girl.”Turner, 39, a South Carolina [...]