Review: If you don't yet know Mansur Brown, you soon will. Previously best known for playing guitar on Yussef Kamaal's "Black Focus" album, Mansur is a 21 year-old prodigy with a huge future ahead of him. For proof, just check "Shiroi", his debut album. Built around his virtuoso guitar playing - a fusion of the psychedelic intensity of Jimi Hendrix and the smooth bliss of jazz greats like George Benson and Pat Metheny - the set's eleven sparkling tracks variously mix and match elements of dub, instrumental hip-hop, broken beat, jazz-funk, beat-free soundscapes and hazy, suitably horizontal downtempo grooves. The results are uniformly excellent.