"You guys sound like an arena," tUnE-yArDs maestro Merrill Garbus beamed halfway through her sold-out set in the Mainroom last fall. And Garbus was right to be impressed by the crowd's reaction — it was one of the most joyous and shrieking receptions a Minneapolis crowd has shown a touring act in recent memory, save for the last time Taylor Swift came through town. With every ukulele strum and looped vocal melody the audience would respond in unbridled elation, and it was that give and take between the raw talent of the performer and bursting energy of the room that made it one of the most memorable shows of the year.