Editing film to music's rhythm — including the body's biorhythm — produces a profound physiological impact on viewers

Eisenstein’s metric montage used regular rhythmic cutting that mirrors the beat, while his rhythmic montage followed the music’s internal structure (Alexander Nevsky, 1938, was cut to pre-existing music). He also discovered that cuts to the pace of a heartbeat had a profound physiological impact, mirroring viewers’ biorhythms. This is why VJ and live cinema performance so commonly sync visuals to the beat: the technique has a century of empirical validation. Eisenstein’s more sophisticated insight was that rhythm could operate at multiple levels simultaneously (metric, rhythmic, tonal, overtonal), not just on the beat.

Examples

Beat-synced transitions in Resolume driven by the kick drum. Eisenstein’s Alexander Nevsky (1938): film cut to the rhythm of Prokofiev’s score written before shooting.

Assessment

Explain the difference between metric montage (cutting on the beat) and Eisenstein’s more nuanced ‘overtonal’ montage. How might you apply each in a live visual set?