Complex sentence: After relocating to London they played live between 2002-2004 including Ocean and Shepherd's Bush Empire and a live performance on BBC World Radio before he left to produce his own music and continue working as a mix engineer in media and television.
Split into simpler sentences: After relocating to London they played live between 2002-2004 including Ocean and Shepherd's Bush Empire and a live performance on BBC World Radio. Shortly after this he left the band to continue writing his own music and working as a mix engineer in media and television.