19:00MistaJamWednesday - Seani B sits in for MistaJamBBC Radio 1Xtra Duration: 3 hours Wed 21st Apr 2010, 19:00 on 1xtraSeani B sits in for MistaJam with two hours of the best new and cutting edge music.GenresMusicHip Hop, RnB & DancehallBrandMistaJam Source: BBC Online