Picture the last edit before a release: your co-writer has a split sheet ready, but the bridge contains a phrase from an AI tool that you kept. The eCO form now asks what the authors created.
First, choose the work: composition or recording. They are separate rights, even when the same people made both.
Then name the human contribution and identify any AI-generated material the Copyright Office directs applicants to exclude. Do that before you open eCO.
Decide which work you are filing
Start with the composition.
Under Copyright Office rules, music and lyrics form a musical composition. A sound recording is the fixed performance of that composition, so registering one doesn't register the other.
For a composition application, choose "Work of the Performing Arts" as the Type of Work. Circular 50 says to name the people who created the music or lyrics and describe their authorship as lyrics, music, or a musical arrangement.
The eCO Standard Application's author instructions define music as the melody, rhythm, or harmony of a composition. Lyrics means the words; for the composition, those are the boxes that match the work.
The recording has its own application path. One Standard Application can cover both works only when the composition and recording are embodied in the same phonorecord and the same person or entity is the claimant for both. That claimant may be the author of both works or an owner who acquired both copyrights; identify the authors of each work and explain the transfer if the claimant is not the author.
Circular 56A describes that route. If either condition is missing, file the composition and recording separately. The Single Application has a narrower test: the author must be the only featured performer and the sole copyright owner of both works.
Don't choose the sound-recording route solely because the composition has already been recorded. The application type follows the work you want registered; the two copyrights remain distinct under Circular 50.
Map the human work before you open eCO
Before you open the form, write down every contributor. What did each person actually create? Note lyrics, melody, harmony, rhythm, or a human-created arrangement.
Then note where AI-generated material appears. Keep that description concrete, such as "two lines of generated lyrics in verse two" or "a generated melody phrase in the bridge," if that's what happened.
Don't treat every use of a tool as the same kind of contribution. Asking software to clean up a recording is different from keeping a musical passage the software generated.
Under the Copyright Office's AI registration guidance, an applicant must disclose AI-generated material when it is more than de minimis. The policy focuses on the human authorship that remains.
One generated passage doesn't erase the whole song. Your claim should name what a person wrote or arranged and identify the AI material the application leaves outside the claim.
Do the map with your co-writer before anyone files. If the agreement says one person wrote the lyrics and another wrote the music, the application should describe that division instead of smoothing it into a single, inaccurate credit.
Name the people, not the software
Use the Standard Application and identify the human author or authors. An AI system or its provider isn't an author or co-author just because you used the tool; the registration guidance explains that boundary.
In the "Author Created" field, describe what a person actually contributed. "Lyrics" and "Music" may be enough for a straightforward song; use "Other" only when the listed terms don't describe the human authorship accurately.
Where a person selected, coordinated, or arranged material, describe that creative work in plain terms. Don't claim a generated passage as human-written just because you edited it afterward.
In eCO's Author help page, the application names the people who created the work. The AI policy also asks you to explain the human contribution, so those descriptions should agree with your split sheet and the version you submit.
Work-made-for-hire changes the author field. Circular 50 names the employer, not the individual who created the music, as author in that case. Read the contract.
When a tool generated almost all the melody or lyrics and you made no protectable human contribution, don't name yourself as author of those parts just to force the application through. The guidance limits a claim to the human authorship you actually contributed.
Put generated material in the field the Office names
When more-than-de-minimis AI-generated material is in the work, the Office's guidance directs applicants to disclose it and explain the human contribution. In the "Limitation of Claim" section, use "Other" under "Material Excluded" to describe the generated content.
That sounds like a small entry. It carries the important boundary: you're not asking the Office to register the generated portion as human authorship.
Where the form asks what new material is included, keep that description consistent with "Author Created." The Limitation of Claim help says those descriptions should match and name the authors who created that material.
You don't need to invent legal language. Describe the kind of material, where it appears, and the human work you are claiming, using terms that match the submitted song.
For an uncertain disclosure, the AI registration guidance permits a general statement that the work contains AI-generated material. The Office may contact you during review for more detail.
Before filing, compare the author list, the music or lyrics in "Author Created," and the AI material in "Material Excluded" with the composition you're submitting so every entry describes the same version and the same boundary between human work and generated material.
Keep them aligned.
Keep a record without creating busywork
Don't mistake a session diary for a required application field. The filing question is the human work you can claim and the AI-generated material you need to disclose.
Save the lyric drafts, dated project files, stems, and any agreement that records who wrote or arranged each part. If you revised a generated passage, keep the version before and after so you can describe what changed.
Those files aren't a substitute for a clear application. They're a practical backstop if your collaborators later remember the session differently or the Office asks what you meant.
Keep this evidence proportionate. A short note beside the saved versions is more useful than a folder full of prompts nobody can tie to the final composition.
Before you submit, compare the author names and excluded-material description with the version you intend to register. If the chorus or bridge changed after the split sheet was signed, update your notes before you certify the application.
The gray area has no bar-count shortcut
Current guidance gives no fixed count of notes, lines, or seconds that makes AI-generated content de minimis. The answer depends on the material and the human contribution in the work.
No disclaimer may be needed when an AI use raises no question about human authorship. That isn't permission to guess; if the tool generated a meaningful part you kept, describe it.
The AI and copyright page links to the registration guidance and the Office's later report on AI outputs. Read those materials if your application turns on a difficult authorship question, rather than borrowing a percentage from another artist's post.
A copyright filing isn't a royalty registration
This article is about a U.S. Copyright Office application for the composition. It doesn't replace a PRO or Mechanical Licensing Collective work registration, and it doesn't tell a distributor how to label AI credits.
Those systems handle different records and purposes. Our separate explainer on copyright registration and royalty collection shows where the records differ.
Fill in the form only after you can name the composition, the human authors, and the part you aren't claiming. A good application doesn't hide the tool or credit it as a songwriter; it draws the line honestly.
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More from the Indie Label / Artist Dev desk →Further reading on From The Stem
· AI Music and Copyright
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