For over 20 years, the brothers Dickinson and their southern jam band North Mississippi Allstars has been bringing a century of down-home blues to concert stages all over the world. They’re so focused on touring that, in all that time, they’ve only released eight studio albums, interspersed with around the same number of concert recordings. That seems apropos, as the stage is where they do their best work. That said, their debut studio album for big-time Sony Records last year, Prayer For Peace, features some of their most heartfelt and powerful blues covers to date, including songs by Mississippi Fred McDowell (“You Got to Move,” a duet sung with Danielle Nicole), Gus Cannon (“Stealin’”), and R.L. Burnside (“Long Haired Doney”), whose son Duwayne has occasionally accompanied the Dickinsons. There’s even a lilting rendition of the spiritual classic “(We) Bid You Goodnight” that plays far more as a campfire sing-along than the many more rubber gospel versions heard over the years at Grateful Dead and Allman Brothers concerts. The Prayer For Peace support tour includes a February 6 show at the Belly Up, which appears to be the only place in San Diego that they’ve played since at least 2009.