THE DAVID MAYFIELD PARADE Singer/songwriter, guitarist Mayfield is touring in support of his newest solo recordings; his other outfit, the bluegrass quintet Cadillac Sky is currently on indefinite hiatus. Mayfield’s American songbook is genuine, and filled with folk, country, old-time rock and gospel. The Avett Brothers caught on early. They’ve taken Mayfield along on tour and stacked him into many of their jams. Don’t let his humble demeanor fool you; the musical troubadour is a force on stage, albeit bereft of any pretensions. Late Show. $12 in advance. The Evening Muse.