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License: How You Can Use the Music

Free to use, commercial projects included. Credit appreciated, not required. Here's what that means in practice, and the few things that aren't allowed.

Where this music comes from

The music here is made by us with Google's music generation model. We then even out the loudness, add the track name and ID, and save it as a 192 kbps MP3.

In most places, including Taiwan, the United States, Japan and the EU, content like this generally isn't protected by copyright. Laws differ and are still changing, so we can't promise its legal status anywhere.

To the extent we hold any rights, for example in the selection and arrangement of the tracks, or in sound recordings in some places, we grant them to you for free, worldwide, non-exclusively and irrevocably, under these terms.

What you can do

Personal and commercial use
Videos, podcasts, streams, games, apps, presentations, courses, ads and client projects.
Edit it
Cut it, loop it, change the speed, remix it and combine it with other material.
No strings
No sign-up, no fee, and you don't need to tell us.

Credit

Credit appreciated, not required. If you'd like to add one, a line like Music: track name (track ID) from casper.tw/free-music/ is plenty.

A credit line also helps if you ever get a claim through YouTube's copyright matching system (Content ID), because it shows where the music came from. On its own, though, it isn't grounds for a dispute.

What you can't do

Register it
Don't register the music, or work made mostly of it, in YouTube's copyright matching system (Content ID) or any audio fingerprinting system, or with a collecting society or distributor to collect royalties.
Claim it as yours alone
Don't claim exclusive rights to it, or send copyright claims to other people who use it.
Resell or redistribute it
Don't release the tracks as music on Spotify, Apple Music or other streaming services, alone or with small changes, and don't repackage them as a music library or sound pack.
Train AI with it
Don't use the music to train, fine-tune, evaluate or improve any AI or machine learning model, including music and audio models, or put it in a dataset you share.
Mislead people
Don't say a real person wrote or performed it, or present it as made entirely by people.
Harmful content
Don't use it in content that's illegal, hateful, harassing, fraudulent or sexually explicit, or that infringes on other people's rights.
Health claims
Don't promote it as medical, as a treatment, or as a way to improve any health condition.

What we can't promise

No exclusivity: other people may have the same or similar music.

We don't promise that the music doesn't infringe on anyone's rights, and we don't offer any compensation. To the fullest extent the law allows, we aren't liable for anything.

We may remove tracks at any time. Tracks you've already downloaded can still be used under the terms that applied when you downloaded them.

These terms have a version date, and changes don't apply to earlier downloads.

YouTube and podcasts

YouTube's altered or synthetic content setting
If the music is only in the background, you usually don't need to turn it on. If the music is the main content, like a long music-only video, turn it on. YouTube says it doesn't affect reach or monetization.
Apple Podcasts
Before you publish, check the Apple Podcasts guidelines on AI-generated content (section 1.11).

Downloads and versions

Downloading a track means you agree to these terms. Version: November 2026.

Questions about these terms: contact@casper.tw

License questions

Do I have to pay or sign up?
No. Downloading and using the music is free, with no sign-up, and you don't need to tell us.
Do I owe any royalties?
No. You don't pay a fee, royalties or license charges to use these tracks. That doesn't mean you can register them as your own work, though; the things that aren't allowed are listed above.
Can I use a track in a song I'm releasing?
Please email contact@casper.tw first so we can talk it through. Many distributors register releases in YouTube's copyright matching system (Content ID), and the terms don't allow registering the music or work made mostly of it.
Can the license be taken back?
No, it's irrevocable. If a track is removed or the terms change, tracks you've already downloaded can still be used under the terms from when you downloaded them.
Can I hand client work over to my client?
Yes. Your client can use the video or ad you deliver as usual. It's a good idea to give them the license page link, the track link and your download date for their records.