Mark Farina is based in San Francisco and has his roots in house music. Farina's fame, however, comes from a downtempo series called Mushroom Jazz. The best is the fourth, which was released in 2002 and had the noble ambition of reviving the beauty and sweetness of hiphop. "Hiphop is the most beautiful music in the world," the French DJ Cam once said. The truth of this statement can be found on Farina's Mushroom Jazz 4. (The Last Supper Club, 124 S Washington St, 748-9975. 9 pm, $10, 21+.)