Ronny Trettman's skittering, propulsive beats, mind-numbing bass, and wickedly smart verses have established him as a pioneering, rule-breaking figure in hip-hop. Since the early noughties, the MC and producer has crafted a sound that reflects the range of European urban music. His songs move fluidly between dub rhythms and easy, ear-catching hooks, melodic, R&B-influenced passages, and hazy, chopped-up hip-hop.