Led by dynamic young singer-songwriter/guitarist Nate Cook and guitarist/bassist Jesse Parmet, and now featuring drummer Adam Perry, the Yawpers (named after Walt Whitman’s promise to “sound my barbaric yawp over the roofs of the world”) recall a grittier version of Wilco, with as much raw country sensibility as twisted indie imagination. Without seeing them live, the rollicking demo of “Heart On a String” is the only taste the Yawpers can give you at the moment, but shades of the Yawpers’ down-home rock were previously heard on Cook and Parmet's contributions to the now-defunct Boulder band Ego vs. Id’s 2010 LP "Taste," such as “Hey Sarah” and “National Disaster.” Equally akin to Deer Tick, Tom Waits, Bob Dylan and Elvis, the Yawpers’ fresh blend of alt-country and rock ’n’ roll is something you won't hear often in Colorado, but something you'll want to hear again.