Limitation of Claim for AI Music: The Complete Guide to USCO Copyright Registration

A Limitation of Claim is a formal declaration on a copyright registration application that identifies which parts of a work the applicant is claiming authorship over — and which parts are excluded from that claim. It has existed for decades to handle works incorporating preexisting material, such as a new arrangement of a public domain melody.

What is new is its application to AI-generated content. Since the USCO's March 2023 Registration Guidance (88 FR 16190), applicants who submit works containing more than de minimis AI-generated material must use the Limitation of Claim section to disclose and exclude that material. The guidance established an affirmative duty to disclose: failing to identify AI-generated content can result in cancellation of the registration, even after it has been granted.

The Limitation of Claim is the mechanism that allows AI-assisted music to be registered at all. Without it, the USCO has no way to distinguish the human authorship it can protect from the machine-generated output it cannot.

Copyright protects original works of authorship, and under U.S. law, an "author" must be a human being. This principle was reinforced in Thaler v. Perlmutter (D.D.C. 2023, affirmed D.C. Cir. March 18, 2025), where the court held that an AI system cannot be named as the author of a copyrightable work. The Supreme Court declined certiorari on March 2, 2026, leaving the human authorship requirement undisturbed.

The USCO's Part 2 Report on Copyright and AI (January 29, 2025) reaffirmed this at the policy level: works entirely generated by AI are not copyrightable. But works that combine human authorship with AI-generated material can be registered, provided the human-authored elements are sufficiently original and the AI-generated elements are properly disclaimed.

For music creators using Suno, Udio, or AI-assisted production tools, the Limitation of Claim is how you tell the Copyright Office: "Here is what I created. Here is what the machine created. I am claiming only my part."

Author Created (New Material Included) — This field describes the new, human-authored material you are claiming. It must be specific enough for an examiner to understand exactly what the human contributed. Vague entries like "music" or "original work" invite correspondence letters and delays.

Strong examples for AI-assisted music: "Lyrics written by the author," "Musical arrangement and orchestration by the author," "Selection, coordination, and arrangement of human-authored lyrics and AI-generated musical elements," or "Vocal melody, harmonic progression, and lyrics by the author." The descriptions here should correspond precisely to the Material Excluded field. Together, they must account for the entire work.

Material Excluded — This field identifies the portions not being claimed — the material generated by the AI system. The USCO's 2023 guidance specifies that applicants should "provide a brief description of the AI-generated content, such as by entering '[description of content] generated by artificial intelligence.'"

Examples: "Musical composition and sound recording generated by artificial intelligence (Suno)," "Underlying melodic content generated by artificial intelligence," or "Sound recording elements generated by AI production tools." Excluding too much means you disclaim rights you could have claimed. Excluding too little means the examiner may flag your application for insufficient disclosure.

Note to Copyright Office — This optional but strongly recommended field provides context the structured fields cannot capture. For AI-assisted music, explain how the AI was used and what the human author contributed.

A well-crafted note might read: "The author used [AI tool name] to generate an initial musical demo. The author then substantially revised the melodic structure, rewrote all lyrics, re-recorded all vocal performances, and rearranged the harmonic progression. The claimed material reflects the author's original creative contributions. AI-generated elements that were not substantively modified by the author have been excluded." This note significantly reduces the likelihood of examiner correspondence.

Scenario 1: Text-to-Audio Generation (Suno, Udio) — The creator types a text prompt describing a song. The AI generates a complete audio track including composition, arrangement, vocal performance, and sound recording. If the creator wrote original lyrics and provided them to the AI system, the lyrics can be claimed. Creative selection and arrangement of multiple AI-generated outputs into a final work may also be claimable. The musical composition, the arrangement, the vocal synthesis, and the sound recording — all generated by the AI system — must be excluded. Prompt engineering alone does not constitute authorship. The USCO has consistently held that users of current generative AI systems "do not exercise ultimate creative control over" how the system interprets prompts.

Scenario 2: AI-Generated Melody with Human Arrangement — The creator uses an AI tool to generate a melodic idea or chord progression, then builds an original arrangement around it — adding human-performed instrumentation, original lyrics, a new harmonic structure, and producing the final recording. The arrangement, orchestration, lyrics, vocal performance, and any original musical material added by the human author are claimable. If sufficiently transformative, the overall selection, coordination, and arrangement of the combined work may also be claimable. The underlying AI-generated melody or chord progression must be excluded. The more the human author transforms or departs from the AI-generated seed material, the stronger the claim.

Scenario 3: AI Used for Production and Technical Tasks Only — The creator writes all musical material and performs all creative work. AI tools handle only technical tasks — mastering, noise reduction, pitch correction, mixing assistance. The entire work can be claimed. No limitation is needed, provided the AI was used solely for technical execution. Using AI for mastering is analogous to using auto-tune or a DAW's built-in effects — tools, not co-authors. If the AI made creative decisions — generating fills, suggesting chord substitutions, creating melodic variations — a limitation may still be required.

Scenario 4: Substantially Reworked AI Demo — The creator generates an AI demo, then substantially reworks it — rewriting lyrics, re-recording performances, restructuring the composition, altering the arrangement. All human-authored revisions, additions, and creative modifications are claimable: rewritten lyrics, new melodic material, re-performed vocals and instruments, and the overall creative arrangement. The original AI-generated material that remains in the final work must be excluded, to the extent it is identifiable and more than de minimis.

AI-assisted music must be registered using the Standard Application in the eCO system. The Single Application form does not support Limitation of Claim entries and cannot be used for works containing AI-generated material.

Within the Standard Application, the choice between Form PA (Performing Arts) and Form SR (Sound Recordings) depends on what you are registering. Form PA covers the musical composition — the underlying melody, harmony, lyrics, and arrangement as a work of performing arts. Use Form PA when you are registering only the composition, not a specific recorded performance of it.

Form SR covers the sound recording — the specific fixation of sounds in a recording. If you own both the composition and the sound recording and want to register them together in a single application, use Form SR. The USCO permits a single SR application to cover both works when ownership is identical.

For most independent AI-assisted music creators, Form SR is the practical choice, as it allows you to register both the composition and the recording in one filing. Confirm the current eCO filing fee at copyright.gov before filing.

After submission, your application enters the USCO's examination queue. For AI-assisted works, the examiner evaluates four things: whether AI involvement is properly disclosed, whether the claimed human authorship meets the Feist originality threshold, whether the excluded material is adequately described, and whether the claimed and excluded material together account for the whole work.

If the examiner has questions, they issue a correspondence letter. You typically have 60 days to respond (confirm the current response window in the correspondence letter you receive). Unresolved issues may lead to refusal, which can be appealed through the USCO's administrative review process. Current processing times range from several months to over a year, and AI-related applications may receive additional scrutiny.

Creators and their counsel encounter the same set of avoidable mistakes when filing AI-assisted music registrations.

The February 2023 decision on Zarya of the Dawn remains the most cited USCO precedent for AI-assisted works. The Copyright Office's letter to Kristina Kashtanova established three principles that apply directly to music.

Selection and arrangement can be protectable. Even when individual AI-generated elements are not copyrightable, the human author's creative decisions about how to select, coordinate, and arrange those elements into a final work can constitute protectable authorship. For music, this means that a producer who creatively selects and arranges AI-generated stems, loops, or melodic fragments into an original composition may have a registrable claim in that arrangement.

The AI-generated elements themselves remain unprotectable. The individual Midjourney images in Zarya were excluded from the registration. Similarly, individual AI-generated musical elements — a Suno-generated melody, a Udio-produced beat — would need to be excluded.

Control matters. The Copyright Office found that Midjourney users lack "sufficient control" over the system's creative output because the relationship between prompt and output is unpredictable. This reasoning applies equally to text-to-audio music generation, where the creator cannot precisely control the melodic, harmonic, or timbral choices the AI makes.

The practical takeaway for music creators: the more demonstrable creative control you exercise over the final work — through original performance, arrangement, lyric writing, and substantive revision of AI-generated material — the stronger your registration claim.

USCO Examiner — A properly completed Standard Application with accurate, internally consistent Limitation of Claim fields. Supporting deposit material (the audio file) must be submitted. No external evidence is required at filing, but the examiner may request supplemental information via correspondence.

Platform Audit (Distributors, DSPs, PROs) — Documentation demonstrating that the work contains human authorship and AI-generated elements have been properly disclosed. A USCO registration certificate is the strongest single piece of evidence. PROs like ASCAP, BMI, and SOCAN currently accept AI-assisted works on self-declaration only, but structured provenance documentation provides a meaningful compliance advantage.

Federal Court (Infringement Litigation) — The highest evidentiary standard. A USCO registration is a prerequisite to filing suit (per Fourth Estate v. Wall-Street.com). Courts examine the full record of creation: session files, version history, timestamps, and expert testimony. Cryptographic proof-of-existence timestamps (RFC 3161) and machine-readable provenance metadata establish chain-of-custody evidence that is difficult to fabricate and straightforward to verify.

The gap: the USCO examiner needs a correctly filled form. A federal court needs a defensible evidentiary record. Building that record at the time of creation — not retroactively before litigation — is significantly more credible and less expensive.

RightsDocket's claim preparation system maps your specific AI usage scenario to USCO-ready Limitation of Claim language through a guided workflow. Behind what appears as three fields and two checkboxes, the system evaluates 56+ decision nodes to generate precise Author Created, Material Excluded, and Note to Copyright Office text tailored to your situation.

The workflow identifies which scenario applies (text-to-audio, AI melody with human arrangement, production-only AI, substantially reworked demo, or hybrid cases), then generates claim language that aligns with USCO taxonomy and current registration guidance. The output is a structured Provenance Record — a signed PDF with form-field mapping, risk flags, and filing pathway recommendations — that you can reference directly when completing your eCO Standard Application.

RightsDocket does not file registrations on your behalf and does not guarantee registration outcomes. What it provides is claim-ready documentation: the precise language and supporting structure that reduces examiner correspondence, avoids common rejection triggers, and gives you confidence that your filing reflects current USCO requirements.