MP3 to MIDI Output Rights: Who Owns the File You Download?
Downloading a converted MIDI file gives you a file, not a right. Of the three converters read here, one hands you the output with every consequence attached, one licenses it rather than assigns it, one restricts it to private non-commercial use. None grants you anything in the song.
The short answer
- The file is a derivative of your source. All three leave rights in the underlying work exactly where they found them.
- One restricts the output itself. songscription limits use of any Output to your own private, non-commercial use, and forbids using it to train an AI model.
- One licenses rather than assigns. jukeblocks' API terms say Generated Output is licensed for use within your product.
- One transfers the consequences. ai-midi puts every use of an Output, commercial use included, and all resulting responsibility on you.
- One is silent. jukeblocks' consumer terms never say what you may do with a converted file.
Three documents, three shapes
The same question gets three shapes. ai-midi retains nothing and assigns the consequences: all use of Outputs, including downloading, publication, distribution, commercial use, and provision to third parties, and all resulting responsibility rests with the User. Its Output definition covers any MIDI file, audio file, analysis result, preview file, or other output returned through the Service, so the clause attaches before you download. Rights in its software, models and algorithms stay with the company. songscription restricts instead: your use of the Service, including any Output, is strictly for your own private, non-commercial use. jukeblocks, in its API terms, licenses rather than assigns: Generated Output is licensed to the Licensee for use within their product.
The restriction that outlives the download
songscription's terms keep acting after the file is on your disk. It reserves the right to include watermarks or other identifying marks or data in Output, and you agree not to remove them. It also bars a use: you may not use any Output to train, finetune, or develop any machine learning or artificial intelligence model. That sits beside a licence running the other way: posting content grants the company a licence that expressly includes training its AI models. One object, two rules, opposite directions.
One company, two doors
jukeblocks publishes two documents that answer differently. Its consumer terms of service, last updated 13 March 2023, never say what you may do with a converted file, only that the user takes on full responsibility for any potential copyright infringement. Its API terms, last updated May 2026, are explicit: the Licensee retains ownership of original input data, while Generated Output is licensed for use within their product. The permitted-uses list adds caching Generated Output for up to 72 hours.
What none of the three answers
Two questions appear nowhere. Whether a converted file can be registered, and whether it counts as an arrangement you own. Nothing in the three sets of terms grants that or refuses it. The nearest any comes is songscription's statement that creating a transcription of a copyrighted musical work may require a license or permission from the rights holder, and that the Service does not grant you any such license. In all three, the terms neither add to nor subtract from the rights you already held.
Keep three things
Which document you accepted, consumer terms or API terms, since at jukeblocks they differ. Its date: ai-midi's terms of use are effective 10 August 2026 and its Training Data Use Agreement 28 July 2026, while songscription's terms were last updated 18 June 2026. And which door you used, since an API licence is not the same permission as a page you clicked through.
Quotations come from the terms, API terms and training-data agreement each vendor publishes, read 2026-09-28. songscription's terms sit on its parent company's domain. This page reports what those documents say; it is not legal advice.