Jazz-hip-hop fusion sounds surprisingly fresh considering that were approaching 15 years since Gang Starrs Guru took the plunge with his first Jazzmatazz album, which featured full-blown collaborations with Branford Marsalis, NDea Davenport and Roy Ayers and seemed forward-thinking enough to be billed as experimental. The possibilities between the two forms still seem limitless, and Guru has returned with the series fourth installation. With little to prove, Guru lets up on the overt jazz leanings and just lets it flow naturally on this one. But, as he said on Volume 2, he still takes this jazz stuff real serious and is still dropping science on a 360-degree mind revolution in sober, concise, no-bullshit terms.