Casting a laid-back drawl across a bed of full-bodied guitars, singer Ben Morrison etches a scene with his words. The Brothers Comatose, a San Francisco folk outfit, has a way of evoking imagery with simple sounds. That much is very clear on tunes like “Church Street Blues,” a Norman Blake song that gets a tidy enhancement with the Brothers’ instrumentation. Last year’s Respect the Van showcases the band’s original spin on bluegrass tunes. “Modern Day Sinners” gets the album going with a head-bobbing, hand-clapping ditty. You’d do well to start there and get in the right headspace for tonight’s show. “The good thing about a string band is that things tend to culminate with dancing rather than elbows flying in a mosh-pit,” bassist Gio Benedetti says. Sounds good to us. (Sandy)