Let’s see, now. We’ve got two Chicago jazz organizations sponsoring a British octet that offers avant-garde improvisations on extended patterns derived from South African street music–so where else would you expect to find them but at one of the city’s newest blues clubs? Moire Music was hatched in the brain of saxophonist Trevor Watts; like his UK colleague and predecessor Chris MacGregor, he has adopted and altered the music of those South Africans–such as Dudu Pukwana, Mongezi Feza, and Johnny Dyani–who emigrated to London in the 1960s. (Since the Africans’ music was itself a concoction of American swing-era jazz and their own high-living kwela music, it all comes almost full circle.) The band’s name clues you to their method. A moire is “an independent . . . shimmering pattern seen when two geometrically regular patterns are superimposed”; by layering musical patterns, Moire Music creates a densely polyrhythmic weave that’s often mesmerizing. And give it a 90, because you can really move to it: the night is billed as a “summer dance party,” and it should qualify on all counts. Sunday, 7 and 9 PM, B.L.U.E.S. Etcetera, 1124 W. Belmont; 525-8989 or 283-0531.

Art accompanying story in printed newspaper (not available in this archive): photo/Peter Symes.