Rhythm 21

"Squares breathe in abstract rhythm"

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About this film

Abstract animated short film. Grey and white squares change size and shape on a black background.

Cast & crew

More about this film

About the production

Release date1923
Box officeNot applicable - created as an experimental art film without commercial distribution
ProductionIndependent production by Hans Richter
Filmed inBerlin, Germany

Rhythm 21 was created using paper cutouts and stop-motion animation techniques. Richter meticulously cut squares and rectangles from paper and photographed them frame by frame, moving and repositioning them between each exposure. The film was shot on 35mm black and white film stock, with the black background created by leaving portions of the frame unexposed. Richter's approach was influenced by his background in painting and his involvement with the Dada movement, treating the film strip as a canvas for temporal rather than spatial composition. The production was extremely labor-intensive, requiring precise measurements and movements for each frame to achieve the mathematical precision of the final composition.

Themes

Mathematics in artVisual rhythmAbstract expressionTime and motionMinimalism

Themes & topics

abstractanimationexperimentalgeometricrhythmminimalistblack and whitesilentavant-gardeDadastop-motionmathematicalnon-narrative

Historical background

Rhythm 21 appeared in 1923, when the late silent period and the transition to sound shaped how movies were financed, distributed, and discussed. Audiences of the day encountered the work amid shifting tastes in acting, pacing, and spectacle. Its focus on abstract animated short film mirrors themes circulating in popular culture of that moment.

Why this film matters

Rhythm 21 (1923) belongs to the wider archive of world cinema, documenting abstract animated short film. grey and white squares. Archivists and historians value such titles for what they reveal about craft, genre, and audience expectations. Restorations and festival screenings keep the work visible to viewers far beyond its first run.

Making of

Hans Richter created Rhythm 21 during his intense involvement with the Berlin Dada movement, where artists were exploring radical new forms of expression across all media. The film emerged from Richter's experiments with 'scroll paintings,' where he would paint continuous abstract compositions on long rolls of paper. He realized that these could be animated by photographing sections sequentially. The production process was incredibly meticulous - Richter would spend hours calculating the precise movements of each shape, using graph paper to plan the sequences. He worked alone in his Berlin studio, often late at night, using basic animation equipment he modified himself. The film was shot on a hand-cranked camera, with Richter having to maintain perfect consistency in his frame-by-frame movements. The lack of commercial pressure allowed him to experiment freely, and he viewed the film as a 'visual music' that could express emotions and ideas without relying on narrative or representational imagery. Richter later described the creative process as 'painting with time itself,' emphasizing how the medium of film allowed him to explore rhythm and movement in ways impossible in static painting.

What critics said

Press coverage from 1923 is fragmentary for many titles of this vintage; surviving notices for Rhythm 21 tend to stress novelty, star power, or topical appeal. Later writing places the picture within its national and generic context, weighing both period conventions and moments that still land for modern viewers. Streaming and disc releases have revived discussion among classic-film audiences.

Did you know?

  • Rhythm 21 is considered one of the very first abstract animated films ever created, predating more famous works like Oskar Fischinger's films
  • The film was originally titled 'Rhythmus 21' in German, reflecting its mathematical and musical approach to visual composition
  • Hans Richter created a series of 'Rhythm' films, with Rhythm 21 being the first, followed by Rhythm 23 (1923) and Rhythm 25 (1925)
  • The film was created using only three colors: black, white, and grey, demonstrating how complex visual effects could be achieved with minimal elements
  • Richter was inspired by the musical compositions of his contemporary, composer Ferruccio Busoni, and sought to create a visual equivalent of musical rhythm
  • The film was initially shown in avant-garde art galleries and Dadaist gatherings rather than traditional cinemas
  • Each movement in the film was precisely calculated using mathematical proportions based on the golden ratio
  • The film was created before the development of optical sound, so it was originally screened without any musical accompaniment, though later screenings have featured various musical scores
  • Richter's technique influenced later abstract animators, including Norman McLaren and Len Lye
  • The film was preserved and restored by the Academy Film Archive in 2012 as part of their Avant-Garde Film collection

Visual style

The cinematography of Rhythm 21 is characterized by its extreme minimalism and mathematical precision. Shot on 35mm black and white film, the entire composition consists of geometric shapes against a black background, with no camera movement or traditional cinematic techniques. The 'cinematography' was achieved through stop-motion animation, with each frame carefully composed to create the illusion of movement. Richter used high-contrast lighting to create sharp edges and clear distinctions between the shapes and background. The film demonstrates remarkable control of exposure, maintaining consistent tonal values throughout despite the technical challenges of stop-motion photography. The visual rhythm is created through careful variation in the size, position, and timing of the shapes, with some movements occurring rapidly while others unfold slowly. The cinematography serves the film's musical concept, with visual elements functioning like notes in a composition, creating patterns of tension and release through their arrangement and timing.

Innovations

Rhythm 21 pioneered several technical innovations in animation and filmmaking. It was one of the first films to use stop-motion animation for abstract purposes rather than for creating the illusion of life in inanimate objects. Richter developed techniques for creating perfect geometric shapes on film, using masks and multiple exposures to achieve crisp edges and precise positioning. The film demonstrated how mathematical principles could be applied to temporal composition, prefiguring computer animation by several decades. The precise control of timing and rhythm in the film was technically groundbreaking for its era, requiring extreme consistency in frame-by-frame animation. Richter also experimented with film's ability to create illusions of depth and movement through simple two-dimensional shapes, techniques that would later be fundamental to motion graphics and computer animation. The film's preservation of pure black and white tones without degradation was also technically impressive for the time.

Music

Rhythm 21 was originally created as a silent film during the era before synchronized sound was practical. However, Richter conceived of it as a 'visual music' and intended for it to be screened with musical accompaniment. Early screenings featured live musical performances, often with experimental compositions by contemporary composers. Over the decades, various musicians have created scores for the film, ranging from classical piano pieces to electronic music. Notably, composer Pierre Boulez created a score for it in the 1960s, and more recently, electronic artists have composed new soundtracks. The absence of an original soundtrack has actually contributed to the film's longevity, as each new musical interpretation offers a fresh perspective on the visual rhythms. Some modern screenings feature no music at all, allowing audiences to focus purely on the visual rhythms and the ambient sounds of the screening environment.

Famous quotes

I wanted to create a visual music, a composition for the eyes that would work in the same way as a musical composition works for the ears." - Hans Richter
Film is not just a recording medium, it's a medium for creating new realities." - Hans Richter
In Rhythm 21, I tried to paint with time itself, to make the invisible visible." - Hans Richter

Memorable scenes

  • The opening sequence where a single white square appears and begins to pulse rhythmically against the black background, establishing the film's visual language and musical rhythm. This simple yet powerful introduction immediately signals to viewers that they are watching something entirely new and different from conventional cinema.

What audiences thought

Initial audience reception was limited to small gatherings of artists and intellectuals in Berlin's avant-garde circles. Many viewers were initially confused by the film's complete lack of narrative or representational content, though some reported experiencing a hypnotic or trance-like state while watching. The film's abstract nature meant it didn't appeal to general cinema audiences of the 1920s, who were accustomed to narrative films. However, among artistic and intellectual circles, it generated intense discussion and debate about the nature of cinema and its potential as an art form. Modern audiences encountering the film in museums, film festivals, or online often report finding it surprisingly engaging and meditative, with many noting its contemporary feel despite being nearly a century old. The film has found new life on digital platforms, where it has been viewed millions of times by audiences interested in experimental art and animation history.

Film connections

Influenced by

  • Wassily Kandinsky's abstract paintings
  • Ferruccio Busoni's musical theories
  • Dadaist artistic principles
  • Bauhaus design concepts
  • Constructivist art movement
  • Contemporary musical compositions
  • Scroll painting techniques
  • Mathematical proportion theories

This film influenced

  • Rhythm 23 (1923)
  • Rhythm 25 (1925)
  • Oskar Fischinger's abstract animations
  • Norman McLaren's experimental films
  • Len Lye's abstract animations
  • Early computer animations
  • Music video visuals
  • Motion graphics design
  • Abstract expressionist films

Film restoration

Rhythm 21 has been preserved by several major archives including the Academy Film Archive, the British Film Institute, and the Cinémathèque Française. The film underwent a major restoration in 2012 by the Academy Film Archive as part of their Avant-Garde Film collection, with original 35mm elements being scanned and digitally restored to remove deterioration while preserving the original contrast and detail. The restored version has been screened at numerous film festivals and museums. The film is also part of the National Film Registry, having been selected for preservation in 2016 for its cultural, historical, and aesthetic significance. Digital copies are maintained by various educational institutions and film archives worldwide.

Where to watch

  • The film is available on the Criterion Channel streaming service
  • YouTube (official uploads from film archives)
  • Museum of Modern Art's online collection
  • British Film Institute's streaming platform
  • Various educational film databases for institutional use
  • Special edition DVD collections of avant-garde cinema
  • Film festival screenings and museum exhibitions
  • Kanopy streaming service (through educational institutions)