Copyright Law Has a Test for AI Music. It May Be Asking the Wrong Question.
Matthew Sag's symposium argument — that copyright may simply not apply to AI music outputs — forces a harder question about what legal framework should.
The Question That Relocates the Entire Debate
Matthew Sag did not argue that AI music companies are innocent — he argued that copyright may simply not be equipped to find them guilty. His formulation at the Berkeley symposium, captured and shared on Bluesky , is deceptively simple: if a model's outputs are not substantially similar to the works it trained on, copyright's primary enforcement mechanism cannot reach the practice. This is not a loophole argument. It is a structural observation about what copyright was designed to do and what it was not.
What Copyright Was Built For — and What It Cannot See
Copyright protects specific expressive choices — a melody, a lyric, an arrangement. It was not designed to address the systematic absorption of an entire creative field into a commercial product. Harvard law professor Rebecca Tushnet's analysis of fair use and LLMs makes this gap concrete: the law asks whether a protected expression was reproduced, not whether a labor market was restructured. A model that trains on a million recordings and outputs music that resembles none of them individually has, under standard copyright analysis, reproduced nothing. The harm that artists describe — displacement, market erosion, the devaluation of craft — is real and legally invisible under this framework at the same time.
The Restatement Fracture and What Courts Will Actually Cite
The ALI Copyright Restatement controversy, in which roughly a third of participants resigned over the document's handling of AI and fair use, is not a procedural dispute — it is a preview of the doctrinal fight that will reach courts before any new legislative framework does. The Restatement carries persuasive weight with judges who are trying to apply nineteenth-century property concepts to twenty-first-century machine learning. A contested Restatement produced under conditions of open disagreement about AI's place in copyright doctrine is the instrument those judges will reach for. Sag's intervention at Berkeley is, in this light, an attempt to inject a more structurally honest framework before that document hardens into precedent.
The Middle Position No Framework Protects
The creators most exposed by copyright's structural limitations are not the superstars pursuing high-profile litigation — they are the lyricists, session musicians, and producers whose contributions feed both training datasets and the commercial products now competing against them. A Musicologize analysis aimed at lyricists using AI composition tools documents the specific bind: their human creative contribution is genuine, their legal protection under current doctrine is uncertain, and the platforms benefiting from the collaboration have no incentive to resolve that uncertainty. If substantial similarity cannot reach AI outputs, these creators are not underserved by imperfect law — they are outside the law's reach entirely. The Duke Law analysis of AI-generated melodies concludes that AI-produced melodies are not copyrightable, which compounds the problem: the human collaborator cannot protect their contribution, and the AI's contribution receives no protection either. The creative work exists. The ownership does not.
The Industry Will Litigate the Wrong Framework Until Courts Force a Better One
Rights holders will continue pursuing copyright claims against AI music companies because copyright is the instrument they have, not because it is the instrument that fits. Sag's symposium argument will not redirect those lawsuits — but it will shape how judges reason about them when the substantial similarity evidence turns out to be thin. The cases that settle quietly will not establish doctrine. The cases that reach judgment on the merits will force courts to decide whether to stretch copyright past its architectural limits or acknowledge that a new legal regime is needed. Sag has already named the outcome: the industry is litigating a framework that was never designed for this problem, and the courts that refuse to stretch it will have written the first draft of whatever comes next.
The story so far
Sag's substantial similarity argument at Berkeley has shifted the debate from whether AI music infringes copyright to whether copyright is the right instrument at all — leaving rights holders without a legal theory and creators without a framework.
Frequently Asked
- What legal framework should replace copyright for AI music if copyright cannot reach the harm?
- The most discussed alternatives are sui generis database rights (protecting training corpora as a category), performer's rights expansions, or an entirely new unfair competition regime targeting market displacement rather than expression copying. None of these exist in U.S. law in a form applicable to AI music. The practical implication: there is no ready substitute, and the window for legislative design is already narrowing as industry norms calcify around the current legal vacuum.
- Why does the ALI Copyright Restatement matter for AI music lawsuits right now?
- Courts cite the Restatement as persuasive authority when applying copyright doctrine to novel situations. A Restatement drafted under contested conditions — with roughly a third of participants resigning over its AI provisions — carries that baggage into every courtroom that references it. Judges reaching for guidance on fair use and AI training will find a document whose own authors publicly dispute its conclusions. That contested foundation shapes outcomes before any appeal reaches a higher court.
- As a working musician, what does the substantial similarity argument mean for my ability to sue an AI company?
- It means your strongest infringement theory depends on proving an AI output is specifically similar to a specific track you own — and that bar is high. If the model's outputs are stylistically derivative but not substantially similar to identifiable works, your copyright claim fails at the threshold. The harm you experienced is real; copyright's test was not designed to see it. Your practical option now is licensing negotiation or legislative advocacy, not litigation — the courts will not deliver the remedy the existing framework cannot provide.
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Methodology
This story was generated autonomously from 15 source records. An editorial model synthesizes, weights, and cites each source. No human editorial judgment was applied.