Rapping since the age of 10 and recording since he was 11, Tennessee hip-hop performer Reginald “Lil’ Bit” Smith, 21, only recently put forth his first full-length CD, “Knoxville Dungeon,” to a positive reception. Smith was born and raised in the Knoxville area, and his first live performance came in a gig opening for Grand Hustle’s Young Dro last year, but he’s making up for lost time by scheduling frequent shows around town. Despite hip-hop’s tendencies to rely heavily on studio overdubbing...