One of the unsung (if you will) aspects of the hit NBC series This Is Us is its unusual musical score by Siddhartha Khosla. For a sidebar to this week’s Variety cover story on the show, editors asked me to profile Siddhartha and discuss his acoustic guitar-driven, often subtly emotional music. Khosla, the son of Indian immigrants, has a fascinating background and is the prime moving force behind the band Goldspot. He wrote a song for This Is Us that shot immediately to no. 12 on iTunes, and Universal Music Group is preparing a soundtrack album to be released later this year.