A rough draft of the Interstellar music

Hans said, “So this letter arrived from this beautiful story about what it meant to be a father. And so yes, I spent a day writing and writing, and I phoned his house at about 10 o’clock at night on Sunday. His wife answered. I said, Emma, ‘I’ve done it. Do you want me send it over?’ She said ‘Oh, Chris is curiously waiting and he’s like pacing up and down? Do you mind if he comes over?’”
Reaction from Christopher on his composition
Hans said that Christopher never initially shared any information with him regarding the script, as he recalled how he came up with the idea for his composition for Interstellar.

He continued, “So he came over and he sat down on the couch. And I said, ‘Okay, I’ll play it to you.’ And I played him this fragile little piece that I’d written about my son. You know, a relationship I have with my son. And I get to the end of it. I said, ‘So what do you think?’ He told ‘Oh, I’d better make the movie then. I’m like great.’ I asked ‘What is the movie?’ And he started talking about space, and huge and epic and all this. Then finally, I told, ‘stop, stop. I’ve written this tiny, tiny little thing. You know, this very fragile personal thing.’ And he goes, ‘Yeah, I know where the heart of the movie is now.’”