Hello, I’m Ben,” says Ben Coyle-Larner, a 24-year-old British rapper better known as Loyle Carner. He’s slumped in a photographic studio in east London, wearing a vivid orange gilet: “I look like I’m signalling a plane down.” He carefully studies the small print on an impressive array of cold and flu remedies, wondering whether you can combine, say, Strepsils with Beechams All in One. “The only good thing about feeling like this,” he muses, “is you can play PlayStation and…