Fumenru
JAEN

Terms of Use

The terms that apply when you use Fumenru.

Last updated: October 25, 2026

This English text is provided for reference. The Japanese version is the authoritative one, and prevails if the two differ. You can read it at 利用規約.

1. Scope

These terms set out the conditions for using the application “Fumenru” and this website (together, the “Service”) provided by MATATABI, K.K. (the “Company”). Anyone who uses the Service (a “user”) is deemed to have agreed to these terms.

If you obtained the app from the App Store, Apple’s Licensed Application End User License Agreement also applies. Where that agreement and these terms conflict, these terms prevail to the extent that agreement allows.

Personal information is handled as set out in our Privacy Policy, which forms part of these terms.

2. Registering and managing your account

The sample scores and the blank score can be used without an account. An account, which is free, is required to read a photographed score and to save scores.

3. Sheet music and copyright

Only the following may be brought into the Service. It is your responsibility to confirm that a score falls into one of these categories.

The Company does not supply or distribute sheet music. Results are stored inside your own account. They are not made public or shared with other users unless you yourself use the sharing feature.

Rights in the score data produced by reading belong to you. The Company handles it only as far as is necessary to provide and store the Service and to investigate faults.

Reports of rights infringement are received through our Contact page. We review each report and, where necessary, delete the data concerned or suspend the account.

4. Sharing sheet music

The Service has a feature for sharing a score with other people. When you create a share link, anyone who has the link can open and play that score in the Service. A person who receives a shared score cannot edit or copy it.

5. How tokens work

“Tokens” held in your account are spent in the following cases. Playback, and viewing, editing and saving your own scores, do not spend tokens.

For reading photographed scores, the following applies.

There are three kinds of tokens: those the Company gives you free of charge, those issued by purchase, and earned tokens, which you receive when a paid score of yours is bought. The app shows the remaining amount of each. When you spend tokens, free tokens are spent first, then earned tokens, then purchased tokens.

The number of tokens required to read one page may be revised as processing costs change. The app shows the current amount before a reading starts.

6. Tokens given free of charge

The Company may give out tokens free of charge from time to time, as a promotion or as an operational adjustment. Whether tokens are given, how many, and on what conditions are determined by the Company, and may be changed or discontinued.

7. Paid scores and earned tokens

A user who publishes a score (the “publisher”) can make it “paid”. With a paid score, playback stays free for everyone; only viewing the notation costs tokens.

How earned tokens work. Earned tokens are not tokens issued by purchase. The Company grants them to a publisher in response to a paid score being bought.

8. Paid features and payment

Tokens can be purchased inside the app. What is on sale, and at what price, is shown on the purchase screen in the app. The sales terms are set out in the Commercial Transaction Act notice.

Tokens issued by purchase are a prepaid payment instrument for own-business use under Japan’s Payment Services Act. The following is disclosed under that Act.

9. Prohibited conduct

The following are prohibited when using the Service.

Where these terms are breached, we may suspend use of the Service, delete the data concerned, or delete the account, without prior notice.

10. Suspension and changes to the Service

We may suspend all or part of the Service without prior notice in the following cases.

The Company may add to, change or discontinue features of the Service. Changes that materially affect users will be announced in advance.

If the Service is discontinued, we will give at least 30 days’ notice. Unused tokens issued by purchase will be refunded as required by Japan’s Payment Services Act; the method and the period for claiming will be announced together with the notice of discontinuation. Tokens given free of charge and earned tokens are not refunded.

11. Disclaimers

Reading sheet music is performed by AI recognition, and the result can contain mistakes. The Company does not warrant that the result matches the original score. What was read can be corrected in the app.

The Company does not warrant that using the Service produces any particular performance or learning outcome.

Disputes or losses arising from bringing in, sharing or publishing sheet music to which you hold no rights are for that user to resolve. The Company does not warrant the rights, content or accuracy of published scores, including paid ones.

Except where the Company is wilful or grossly negligent, the Company’s liability in connection with the Service is limited to ordinary damages and does not extend to damages arising from special circumstances. In any case, liability is capped at the amount the Company received from that user over the preceding 12 months.

12. Governing law and jurisdiction

These terms are governed by the laws of Japan.

Any dispute between the Company and a user in connection with the Service shall be subject to the exclusive jurisdiction of the district court having jurisdiction over the location of the Company’s head office, as the court of first instance.

13. Changes to these terms

The Company may change these terms in accordance with the law. Any change will be announced by publishing the revised text and the date it takes effect on this page.

Changes that are disadvantageous to users will be announced in advance. Using the Service on or after the effective date is deemed agreement to the revised terms.

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