“If I have learned anything it’s this,” Lina Tullgren confesses on the song “Grace.” “Now I know what it’s like to ruin someone’s life.” It’s one of five winsome tracks on the New Hampshire songwriter’s folky Wishlist EP, a lo-fi affair where echoing multi-tracked vocals and gently meandering guitars get equal footing. It’s nice, if rather unassuming. Tullgren plays Aurora’s free Monday night concert series along with locals Derek Knox (from Way Out) and Pondering (aka Daniel Pond).