Ludwig Göransson decodes his sometimes forward, sometimes backward ‘Tenet’ score [Los Angeles Times] “Tenet” opens with an orchestra tuning up. It’s setting the stage for a thrilling and chaotic action set piece inside a concert hall — but it’s also writer-director Christopher Nolan’s way of telling the audience it’s about to experience a uniquely musical thrill ride. “Music has been such an increasing and fundamental part of the films I’ve made,” the director of “Inception” and “Interstellar” said in the recent book “The Nolan Variations.” “What I’ve done with the bigger film scores over the years is figure out a way to build the machine and then use the mechanism of the music to get to the heart of it.”