Pressure Drop chronicles reggae's most tumultuous and influential decade. Beginning in 1970 and unfolding across the world, reggae flourished against a backdrop of political upheaval, gang warfare, Black Nationalism, racial and class discrimination and grinding poverty. The music that developed as rocksteady and early reggae gave birth to deejays, dub, rockers, lovers rock, early dancehall and 2 Tone was by turns brutal and...