Clockwise from upper left: Spoon, Sharon Van Etten, St. Vincent, Future Islands, Flying Lotus. Courtesy of the artists hide caption

itoggle caption Courtesy of the artists

Alt-J lead vocalist Joe Newman gives his unique voice a break during the band's show at NPR Music's SXSW showcase at Stubb's in Austin. Adam Kissick for NPR hide caption

itoggle caption Adam Kissick for NPR

Alt-J Tiny Desk Performance NPR 2012 Lauren Rock/NPR hide caption

itoggle caption Lauren Rock/NPR