Complex sentence: The community has a strong tradition of "underground"'pirate radio' broadcasters, the most established being London's Lightning Radio, Genesis Radio and Galaxy Radio, which play a mix of ragga, reggae, bashment, hip hop and R&B.
Split into simpler sentences: The community has a strong tradition of "underground" pirate radio broadcasters. Among the most established are London's Lightning Radio, Genesis Radio and Galaxy Radio, which play a mix of ragga, reggae, bashment, hip hop and R&B.