In this video, directors Joel and Ethan Coen explain how their collaboration with T Bone Burnett created a musical sound that was as important as dialogue in capturing the early ’60s folk music scene in Inside Llewyn Davis. Here, they explain how they and Oscar Isaac pulled it off in the CBS Films release. I had the opportunity to moderate a panel in Deadline’s Contenders Event last month. After Burnett and Isaac got done explaining the keys to recreating the sound of an emerging musical movement, Isaac got up with his six string and memorably performed Green, Green Rocky Road, a song from the film. It was certainly a highlight of an event full of them.