Mardi Gras 2015 may have come and gone, but Ace Records is keeping the sound of New Orleans alive year-round, most recently with a pair of new releases from two venerable artists – Clarence “Frogman” Henry and Eddie Bo. Born in 1937, New Orleans native Clarence Henry was one of many musicians inspired by blues singer and pianist Henry Roeland “Roy” Byrd, a.k.a. Professor Longhair.  A pianist, trombonist and a vocalist with a croak that earned him the nickname “Frogman,” the young Henry was energized by the success of Fats Domino, just…