23 structural archetypes derived from 556 films, spanning 7 dominant register families: Stability, Pursuit, Reversal, Crisis, Incitement, Revelation, and Climax. Each archetype is defined by five parameters borrowed from Carnatic music, a system built on the idea that melody is not just sound but emotional territory. We extended this logic to narrative structure: screen time replaces note duration, dramatic registers replace musical registers, and the characteristic phrase of a raaga becomes the beat trajectory of a story. The result is a structural grammar for film that is precise enough to classify and legible enough to write from.
The methodology, the music analogy, regional cinema, and objections to structural classification are all being debated in this Hacker News thread.In music: In Carnatic music, the vadi is the most important note of a raaga, the one the melody keeps returning to, the note that gives the raaga its fundamental character.
In story: The emotional register with the most screen time. The vadi tells you what a story is fundamentally about: whether it is a story of pursuit, reversal, crisis, incitement, or revelation.
In music: The samvadi is the vadi's consonant partner, always a fourth or fifth away. It complements and supports without displacing the dominant note.
In story: The secondary structural engine. The samvadi provides contrast and complicates the vadi, often determining the specific character of a story within its family. Two stories can share the same vadi but feel very different because of their samvadi.
In music: The graha is the note on which a classical composition begins, the first structural commitment, setting the register from which everything unfolds.
In story: The register of the first beat. Whether a story opens in stability (Stability), disruption (Incitement), or crisis (Crisis) sets a structural contract with the audience about what kind of world they are entering and what has already happened before the frame.
In music: The nyasa is the note on which a melodic phrase comes to rest, not necessarily the final note of the piece, but the note that signals a phrase is complete. In a raaga, the nyasa determines whether a phrase feels resolved or suspended.
In story: The register of the final beat. The nyasa determines resolution level: full resolution (Resolution/Climax), mid-register tension (Crisis/Revelation/Reversal), or irresolution (Incitement/Pursuit/Stability). It is the structural decision that most determines how an audience leaves the cinema.
In music: The pakad is the short melodic phrase that fingerprints a raaga. A trained listener hears the pakad and immediately knows which raaga is being played, even before the full composition unfolds. It is the raaga's signature movement through its own scale.
In story: The trajectory modifier: the beat movement pattern that distinguishes stories within the same archetype family. Two films can share the same vadi, samvadi, graha, and nyasa, yet feel structurally different because one Dwells in a single register while another Rebounds or Returns. The pakad is what separates variants of the same archetype.
Stories in the Pursuit Dominant family are built on forward motion. Pursuit is the primary structural register across all five archetypes, but they differ sharply in what accompanies that drive: clean accumulation, turbulent reversal, sustained crisis, persistent incitement, or an open horizon that never converts into arrival.
Stories in the Reversal Dominant family are driven by plot machinery. Reversals, twists, and shifting ground are the story's primary language. Whether triumphant or tragic, Reversal Dominant films are about the experience of the ground shifting beneath the protagonist.
Stories in the Crisis Dominant family are defined by sustained darkness. Crisis is not a single beat but a condition the protagonist inhabits for an extended period.
Stories in the Incitement Dominant family are defined by a disruption that never fully leaves the room. The inciting event, the wound, the mystery, the displacement, retains structural weight throughout the story rather than receding after Act 1.
The Awakening archetype is the only positionally-defined archetype in the system. Rather than requiring Revelation to dominate total screen time, it asks whether Revelation is the structural hinge of the second half: beginning after the 45% mark, running long enough to constitute the story's primary event, and converting directly into resolution.
Stories in the Stability Dominant family dwell in ordinary life as their primary structural substance. The equilibrium register does not recede after Act 1; it is the story. These are films that insist on the weight of the ordinary world as a subject in its own right.
Stories in the Climax Dominant family live at their own peak. The climax register is not a beat to be built toward; it is the condition the story inhabits throughout. Sustained confrontation, peak intensity, and irreducible extremity as the dominant structural substance.
This classification framework was developed by the Quanten Media research team through structural analysis of 556 films across Drama, Thriller, Action, Horror, Comedy, Romance, Adventure, Mystery, Science Fiction, and Fantasy. Each film was manually segmented into narrative beats and scored on the five Carnatic music parameters.
The rule-based classifier was derived from the most statistically significant parameter combinations observed across the corpus. The framework is descriptive, not prescriptive: it identifies structural patterns in completed works and does not claim that all strong films follow these patterns.
See how 23 well-known story frameworks, from Save the Cat to Aristotle, map to this notation. Each framework's beats are translated into swaras, classified by archetype, and contrasted with its nearest structural neighbour.
When a script comes to you, the archetype is already latent in the premise. Submit the logline and the tool returns the archetypes already present in the structure, so development notes can build for the script's natural form rather than against it.
Narrative counts and median IMDb scores are drawn live from the Quanten Arc library. Browse all titles to explore individual narrative analyses. Have questions? Get in touch.