British Folksinger Laura Marling [1] will perform an early show at The Mercury Lounge [2] on Houston Street. You can listen to her on her site as well as hear her debut album. She appears with a British Afro-beat-bluegrass group (is there such a combo?) Mumford & Sons [3] which starts at 6:30. $12 in advance $14 at the door. Beer extra. There are very few seats at the Mercury Lounge. If not standing is urgent, get there early early. New Yorker snippet review is here [4].