Prelude Psycho Theme By Bernard Herrmann 1960 -

: A minor-major seventh chord (specifically B-D-F-A♭) that creates a sense of unresolved tension and tonal ambiguity.

Bernard Herrmann’s "Prelude" to Psycho (1960) is one of the most influential pieces of film music ever written, defined by its relentless energy and the iconic "Herrmann chord". Herrmann famously opted for a "black and white" score—using only a string orchestra—to mirror the film’s visual aesthetic and budget constraints.

: The "Prelude" establishes the film's two-part structure, preparing the audience for a shift from Marion’s crime-driven narrative to Norman’s psychological horror.

: Herrmann utilized "con sordino" (muted) strings even while playing at high volumes to create a strained, glassy, and uncomfortable timbre. Context and Impact

: Alfred Hitchcock initially wanted the motel scenes to be silent, but Herrmann’s music was so effective that Hitchcock nearly doubled his salary.

The "Prelude" serves as the primary leitmotif for the film's sense of urgency and flight, appearing most often when characters are escaping in cars.