Turntablist and sound artist Nicole Raymond (DJ NikNak) and poet and playwright Khadijah Ibrahiim uncover the deep roots of reggae, dub and sound system music in religion, ritual and culture. Woven through their discussion are some classic songs, versions and dub plates from the Pressure Sounds catalogue, and excerpts from their collaboration for Opera North's Resonance programme, when Nicole transformed recordings from Khadijah's audio archive, through collage, reverb, delay and scratching.