You could divide my Undercover Soundtrack guests into those who aren’t put off by lyrics and those who are. My guest this week is one of the latter. He says that music with lyrics is too domineering when he’s trying to write – but that orchestral or ambient electronic music sets his imagination free to roam. His novel is a quirky noir of dirigibles, automata, back alleys and a hardboiled hack (the bipedal journalistic sort, not an equine), and his central character was honed by long hours simmering with Hans Zimmer’s soundtrack for The Dark Knight. He is Aaron Sikes and he’s on the Red Blog with his Undercover Soundtrack.