Terms of Service

Last updated 5 September 2026

1. What this covers

These terms apply to Larkato — the web application, the API behind it, and this site. Using any of them means you accept them. If you're using it on behalf of an organisation, you're confirming you may bind that organisation.

2. Your account

You need an account to generate music. Keep your credentials to yourself; you're responsible for what happens under your account. You must be old enough to enter a contract where you live, and you must not share one account across people who would otherwise need their own.

3. Plans, credits and billing

• Composition is metered in credits. Each plan carries a monthly allowance, and on the same day each month your balance is raised to that allowance. Unused credits do not accumulate; credits you hold above the allowance are not removed.
• Plans bill monthly in advance. Changing plans takes effect immediately: an upgrade makes the larger allowance available at once, and a downgrade leaves your existing balance alone.
• You can cancel at any time and keep access until the end of the period you have paid for. We don't pro-rate partial months.
• If a composition pass fails, its credits are returned to your balance automatically. If something goes wrong that this doesn't cover, write to us.
• We may change prices or allowances. If we do, we'll tell you at least 30 days before it affects your account, and you can cancel before it does.

4. What you make

You own the output. To the extent we hold any rights in what the service generates for you, we assign them to you. You may use it commercially, and you owe us nothing further for doing so.

Two honest caveats, neither unique to us. First, the copyright status of machine-generated material is unsettled in many countries, and we can't promise a given output is protectable — if that matters to your project, take advice. Second, we can't guarantee an output is not similar to existing music. The service writes notation from your brief; checking that what you publish is clear to publish remains yours to do.

5. What you upload

You keep ownership of scores you import. You grant us only the permission we need to run the service for you: to store your files, process them, and show them back to you. That permission ends when you delete the material.

Don't upload material you have no right to use. If you import a copyrighted score, what you may do with what comes out of it is between you and that work's rights holder.

6. Acceptable use

You agree not to:

• resell or redistribute access to the service itself;
• work around credit metering, rate limits or account boundaries;
• use the service to infringe someone's rights, or to produce material that is unlawful where you are;
• scrape, automate against, or load-test the service beyond ordinary use without asking us first.

7. Availability

We aim to keep the service up and we don't promise a particular uptime. It may be unavailable for maintenance, for reasons upstream of us, or because a model provider is having a bad day. Composition depends on third-party model providers, and their availability is not something we control.

8. Your data

How we handle personal data is set out in our Privacy Policy. In short: we store what the service needs to work, we don't sell it, and we don't train models on your projects.

9. Ending it

You can close your account whenever you like. We may suspend or close an account that breaches these terms, and where it's reasonable to do so we'll tell you first and give you a chance to put it right. Export your scores before you go — after closure we may delete them.

10. Liability

The service is provided as it is. To the extent the law allows, we exclude implied warranties, and our total liability to you for any claim is limited to what you paid us in the twelve months before it arose. Nothing here limits liability that cannot lawfully be limited.

11. Changes

We may update these terms. For material changes we'll give notice in the app or by email before they take effect. Continuing to use the service after that means you accept the update.

12. Contact

Questions about any of this: hello@larkato.com.