Sharon Van Etten at SXSW (03/18/11) Photo: D. Caplan Jan 18 Wed Sharon Van Etten Mercury LoungeNew York, NY06:30 PM Buy TicketsOn sale begins:Wed, 01/11/1212:00 PM Feb 1 Wed Buy the Sky Mercury LoungeNew York, NY06:30 PM Buy TicketsAmex presale begins:Wed, 01/11/1212:00 PM Feb 1 Wed Sprit Animal / Zambri Mercury LoungeNew York, NY09:30 PM…