In 'Interstellar,' the quote 'Do not go gentle into that good night' serves as a thematic pulse for the survival of humanity. To match the scale of the cosmos, Hans Zimmer chose the pipe organ as the score's 'main character.' Recorded at Temple Church in London, the organ was selected because it is a wind-driven instrument, which Zimmer felt symbolized the human breath required for survival in space. The massive pipes produced a sound that could go from a delicate whisper to a thunderous roar that shook the theater floor. This choice moved away from typical sci-fi 'beeps and boops' and toward a sound that felt ancient and sacred. The organ's ability to hold massive, sustained chords mirrored the vastness of the black hole, Gargantua, and the weight of the quotes about time and fatherhood that define the film's emotional core.