Steve Coleman and Five Elements, Harvesting Semblances And Affinities (Pi). Coleman, an audacious alto saxophonist and composer, is as progressive as ever. Even subtler at melding disparate ingredients than in his first burst of M-Base renown in the 1980s, he declares in his liner essay, “…my intent was a type of energy harvesting, i.e. the gathering, through musical symbolism, of the energy of particular moments.” The music of his sextet is less metaphysical than his description. For all of the exoticism of its sources and titles, it is accessible and stimulating. “060706-2319 (Middle of Water),” for example, is a delightful polyrhythmic romp. Jen Shyu’s crystalline voice functions as a full partner in the horn section.