With the cinematic release of First Man, Mondo will be releasing the soundtrack, by Justin Hurwitz, this Wednesday through their site. Even before that you can stream the album on all platforms via Mondo partners Back Lot Music.
They even use a Theremin too, with Hurwitz saying,
As soon as I found the main theme at the piano, Damien suggested using a Theremin to express that melody throughout the movie. I got one and started learning to play it and loved how emotional and expressive the instrument could be. With its wailing quality, we were able to capture the type of cosmic pain that suited Neil’s story.
And, much to my delight, it includes a recording of Leon Bridges performing “Whitey on the Moon,” in character as Gil Scott Heron!