Dervish, the high-spirited traditional group from Ireland’s County Sligo, returns to the Flynn. Singer Cathy Jordan leads the group in tunes performed in both Gaelic and English, spinning tales of life and love in a rich, evocative voice. With high-energy reels and jigs on fiddle, flute, accordion, bouzouki, and mandolin, the six-member band “weaves a hypnotic brand of traditional magic, leaving their audience in a state of toe-tapping excitement” (Dublin Evening Herald).