Jeff Russo has composed music for sci-fi fantasy shows like Star Trek Discovery and Picard, The Umbrella Academy, Altered Carbon, For All Mankind, and Lucifer. But he didn’t set out to be known as a composer of SF projects, or even a composer at all. He began as a rock musician, and found he had a knack for writing music for the screen because he understood that music plays a crucial role in grounding unreal stories in the emotions of the characters. We talk about his approaching to scoring and why it’s so challenging to write a theme song.