The single not from the brass section, which crashes with metronomic regularity is the basic unit from which the soundscape of Inception is constructed. It is a derivation of the first note of Edith Piaf's Non. Je ne regrette rien, the song used in-film to signal the transition into the dream world. From this single note the rest of the soundtrack is created using subdivisions and multiplications of the Piaf track.
It provides a rational framework through which the soundtrack weaves and twists.
