THE MOBROS make old ideas sound new. Kelly Morris, who plays guitar and sings with sweeping guttural gusts that can elicit shivers, is joined by his brother, Patrick, on drums. Whereas most bands would be satisfied with re-creating a sound and mood that invokes nostalgia, The Mobros have expanded on the soul and rock music they listened to in their youth. The brothers’ songs contain deeply-rooted Southern underpinnings, a result of growing up in historic Camden, S.C. They’ve played the prestigious Carolina Downhome Blues Festival, Atlanta’s Sweetwater 420 Fest, Greenville’s Artistphere International Art Festival, Eco Fest in Jacksonville, FL, Earth Day Festival in Myrtle Beach, SC, Columbia’s Blues Festival, the Carolina Homegrown Music Festival, Fall For Greenville Music Festival, Sautee Jamboree in Sautee Nacoochee, Ga and the Free Times Music Crawl. About 40,000 revelers were at St. Pat’s in Five Points when The Mobros played a headlining slot in 2012. Most recently they were hand picked by B.B. KING to open for him on two shows of his Summer 2013 tour, at the Snagajob.com Amphitheater in Glen Allen, VA and at the Township Auditorium in Columbia, SC. With his guitar, Kelly, who is crafty and prolific, creates a labyrinthine of notes, sometimes playing dual guitar and bass parts. Patrick, who is sponsored by Anchor Drums, adds Caribbean percussive inflections. What is immediately gripping about the brotherly music is their flourishing harmonies, the melodic layers stacked seemingly effortlessly. The brothers are taking sabbaticals from college to pursue music, and they are on the verge of releasing their debut album “Walking With a Different Stride” in the Fall of 2013. Bars and clubs have smoldered because of their sweltering sets, as the band melds Latin, blues, funk and soul, often in the same song, into a scintillating blend. The music can also soothe in the way that authentic, decades-old soulful classics do. For The Mobros, the old ideas are seasoning for their resonant, modern sound.