Susan Wittenberg, a producer of Nashville 2.0, a documentary which airs tomorrow night at 10:00 p.m. Central on SDPB-TV, discussed her latest film. Nashville 2.0 explores the vibrant Americana music scene, a genre the New York Times dubbed “the coolest music scene today.” Americana is roots-inspired music that draws inspiration from country, folk, bluegrass, R&B, blues, roots rock, bluegrass, gospel, rockabilly, honky-tonk, alternative rock, folk rock, and punk.