The Music of Supergirl, with Composer Claudia Sarne

[Director] Craig [Gillespie] did not want the theme to play properly until she had emerged into the suit and walked into the character fully. We hinted at it earlier on when she's still in the trench coat, and in her first fight sequence — which is this bus sequence with the Sklarians. The first thing that I wrote on this was on that Sklarian bus sequence where she's floating in space. It's sort of lonely piano, and it opens out, and you almost get to a theme, but you don't quite. It just hints at something. When I had that… just a tiny architecture of something, I took that and made it into the theme. That kind of was the genesis of what happened in the whole film and with the music. I took that as the seed and expanded from there.