Roots veteran Sylford Walker links with Poor Man's Friend for the 7"th heaven 'They Don't Know', a fresh studio turn from one of reggae's most distinctive voices. Walker rides a slow-burning one drop groove built on thick drum-to-bass pressure and a swung Nyahbinghi pulse. The vocal sermon lands clear, and longtime followers will recognise the same spirit heard on Walker staples like 'Babylonian', 'Chant Down Babylon' and 'Africa Homeland' - conscious roots imparted with gravel, gusto and spirit. The flip carries 'They Don't Dub', a stripped dub pass from the Poor Man's Friend crew, stretching the rhythm into echo and low-end smoke. Pressed properly, in classic dub acetate/desk-cut homage, as a dinked 7".