Entertained in a pub visit by the Birmingham Rappers, who are not rap music performers but essentially Morris dancers, although they would wildly deny this. It’s called “sword dancing”, although the “swords” are flexible metal strips which they used to use to clean pit ponies up north, not actual swords. (https://themorrisring.org/about-morris/rapper) And the music was performed on a recorder and a fiddle, which basically makes it sound Irish. Fascinating stuff!