The main title music features a snakelike, winding clarinet line in the low register; this communicates mystery, danger, and darkness; a low-register bassoon moves in counterpoint with the clarinet, followed by dark strings, playing the same winding melody; the theme grows by adding brass
Analysis:
A chromatic ostinato repeats once per measure over a longer two-measure pattern; to this is added an elusive series of chords (g, db, Eb, a, g, E, eb7, D7) that eventually gravitates towards Bb major