Jo’burg collective The Brother Moves On continue their genre leaping with this, their fourth album, a studio recording both wildly accomplished and fuelled by ideological fire. The group have long packed a punch with their high energy rhythm section – the acclaimed Bokani Dyer, son of South African jazz legend Steve Dyer, is there on keys – and more recently, by the alto and tenor saxes of young guns Mthunzi Mvubua and Muhammed Dawjee and the massed male vocals of, well, everyone. While the latter trope, a symbol of unity of both the band and their aesthetic, lends polyphonic whammy to several tracks, opener ‘Puleng’ (Sotho for ‘rainy season’) reveals itself like a sunrise, unfurling via bird calls, blowsy horns and gently plucked strings before a solo voice delivers what might be an incantation or a battle cry. Lead single ‘Bayakhala’ (‘They Cry’) showcases the remarkable lead vocals of Siyabonga Mthembu, as elevating and emotional as they are visceral and defiant. And where the five-minute-plus ‘Puleng’ is a glorious wash of gold-ribboned brass and swaying vocalese, ‘Sweetie Love Oh’ is complex, demanding, all shifting tempos, prismatic scales and spots of inspired soloing; closer ‘Ta Tom’ moves from metronomic clicks and electronic beeps into a metal-infused wigout taken sky-high by Mthembu’s avenging angel vocals. A major release.