Over the past few years, concert patrons have stopped the musician Carlos Niño after gigs to ask two simple questions: “Are you a shaman?” “I hear the medicine in your music, can I come to your next ceremony?” The queries are fair enough: Looking at Niño, a tall man with a wild beard and kind eyes, one would think he’s from some faraway time and could maybe cast spells. Once you get to know him, you find that he’s just an incredibly sweet guy with a laid-back demeanor, and that he isn’t some guru claiming to have an all-access pass to the otherworld.