The Ivor Novello-winning musician has written works inspired by his family history. He talks about building music from testimony – and why the Windrush generation deserves new narratives A briefcase-sized console with a large, sleek keypad, the MPC One drum machine is an eye-catching piece of kit. It can’t be easily overlooked among the various synthesisers, guitars, amps, samplers and vinyl albums in Renell Shaw’s studio in Wood Green, north London. This month, when the 38-year-old musician pla