The playfulness of the phrase “klezmer attack” gives an excellent sense of the musicians who conceived it: the Copenhagen-based sextet Mames Babegenush. A tight-knit group, the six men built on bonds that reach back to their youth. With 15 years of concerts and five studio albums under their collective belt, Mames has developed passionate fans on several continents, thanks to their unique, joyful take on klezmer, the Eastern European Jewish folk-music tradition.