Singer-songwriter and guitarist Roberta Campos has a voice that would make a listener's heart skip a beat at an open mike night—a quiet miracle of a voice that bypasses major crescendos in favour of gorgeous, dreamy swells. That's the low-key magic of a Brazilian artist that has spun mellow, relatable and conversational MPB folk into gold since her solo career began in 2008. Her songs are often stripped down to their acoustic essentials; other tracks, like her signature hit "De Janeiro a Janeiro" float over wafts of orchestral strings.