Cate Le Bon balances balladry and racket at DC9

Most of Cate Le Bon's songs include gentle, if slightly tart, passages that draw on venerable Celtic balladry. But the Welsh singer-guitarist, who performed Wednesday night at a crowded DC9, also likes to make an unholy racket. So it's fitting that she opened her one-hour show with a thumping yet intermittently delicate number titled "No God."