‘Our story of music begins in the dim distant past,’ announces the sample with which this album commences; it’s followed by a boom, and shortly thereafter, by a bap. This is twenty-first century music, today’s music, produced with today’s tools, with a sound that is distinctly located in the now, but it situates itself proudly in a tradition that will always be associated with the nineties. Everything about it is funky, bouncy and brash, and it roams freely over the last fifty years of popular music history like a wayward stylus. Coherence can be an elusive quality on hip-hop albums, especially when they feature a large cast; those that are produced by a small coterie on both the production and vocal side of the equation usually fare the best, but even…