“The best mix of Sun Records meets the Grand Ole Opry that I’ve ever seen or heard,” proclaimed Hollywood actor/musician Billy Bob Thornton after attending Eric Heatherly’s sold-out performance at The House of Blues in Los Angeles. Thornton’s proclamation is spot-on. And it’s one of several signs that the essentials of Eric’s musical travels are multi-faceted, well-earned, and far beyond the typical. At five years old, Eric fell in