It’s a night of magical voices. The wondrous Fischer does mesmerizingly organic, spiritually-infused interpretations of songs by the Stones, Zeppelin, Luther Vandross and others. She will not only open the program but then she’ll join headliners Ranky Tanky. The two-time Grammy winners are a special group from Charleston specializing in Gullah music, a hard-to-classify rootsy soul/jazz sound from a South Carolina island, featuring Qiana Parker, another knockout vocalist who is deeply soulful with remarkable range. (STAR TRIBUNE)