When you introduce a group of curiously dressed punk-influenced folk musicians to a group of muddy moshers, it’s a match made in weirdo heaven. That’s what happened when the experimental Ukrainian band DakhaBrakha debuted at Bonnaroo in 2014, and since receiving a warm welcome at the festival, the ever-inventive group has been making a name for itself with its impressive physical presence and mesmerizing music. Comprised of professional folklorists, DakhaBrakha keeps to its traditional roots in terms of aesthetics, too: The three female singers wear long, flowing white dresses and tall, furry black hats, and founder and experimental theater director Vladyslav Troitskyi dons an intricate embroidered vest. Their cultural heritage keeps the musicians centered, but the four also derive inspiration from Indian, African, and Arab folk music. When the band performs at Sixth & I, no one will judge you if you can’t sing along to songs like “Sukhyi Dub” or “Buvayte Zdorovi,” but you’ll likely go home resolving to learn for next time.