Popol Vuh's "hypnotic music" for "Aguirre" met with considerable acclaim. Roger Ebert wrote, "The music sets the tone. It is haunting, ecclesiastical, human and yet something else... he music is crucial to "Aguirre, the Wrath of God"..." AllMusic noted, "The film's central motif blends pulsing Moog and spectral voices conjured from Florian Fricke's Mellotron-related "choir organ" to achieve something sublime, in the truest sense of the word: it's hard not to find the music's awe-inspiring, overwhelming beauty simultaneously unsettling. The power of the legendary opening sequence of Herzog's film...owes as much to Popol Vuh's music as it does to the director's mise-en-scène."