Most Westerners know Sufi music through the great singer Nusrat Fateh Ali Khan. This digital-download collection introduces six Sufi and Baul/Hindu artists largely unheard outside India. It’s a spellbinding trip into mystical art with a tender heart, showcased in poignant, centuries-old teaching songs about love, humanity and devotion. “Ayat Koran Pore Sudhu Naam Thikana,” by Akkas Fakir, entrances with its plaintive, echo-laden vocal and galloping tabla-and-tambourine rhythm. The collection also features Arati Biswas, one of the few renowned female Baul singers.