English · Polski

Piano Weave – Terms of Service

Effective date: November 20, 2026

These Terms are the agreement between you and me, the developer of Piano Weave, for using the Piano Weave Android app (the "App") and the Piano Weave transcription server (the "Server"). By using the App you agree to them. How your data is handled is explained separately in the Privacy Policy. These Terms are available in English and Polish, and both versions say the same.

1. Who provides the App

Krzysztof Olszak, Brzozowa 4, 05-402 Otwock, Poland
Email: contact.lumenchord@gmail.com

2. What the App does

• Practice: shows MIDI songs as falling notes, plays them back and, in Wait Mode, waits for you to play the right notes.
• Transcription: the Server turns a video link, an audio or video file, or a recording you make in the App into a MIDI file.
• Piano arrangement: instead of transcribing the piano that is played, the Server can arrange the whole song for piano, vocals and other instruments included, as a MIDI file. In these Terms, "transcription" also includes arrangements.
• Processing capacity: when the Server is busy, I may run a transcription on GPU capacity from a third-party provider. This doesn't change the price, the credits used or the result. See the Privacy Policy for what data is sent.
• Library and cloud sync: keeps your songs on your device and, if you turn it on, backs them up to your own Google Drive.
• Other servers: you can connect the App to a transcription server run by someone else. That server's operator, not me, is responsible for it.

The App itself is free. Transcription on the official Server may be free, or paid with credits with some free minutes each month, and this can change over time. Before you start, the App shows whether a transcription uses credits and how many (see Credits and purchases).

3. What you need

• An Android device running Android 8.0 or newer.
• An internet connection for transcription and cloud sync. Practicing works offline.
• A Google account to buy or use credits on the official Server and for cloud sync.
• A microphone for Wait Mode, voice commands and recording, and an internet connection once to download the voice commands speech model.
• Parents and guardians: the law in many countries requires a parent's or guardian's consent before a minor starts using online services or sharing their data. If your child uses the App, you can delete their account and data at any time on the account deletion page, or write to me at contact.lumenchord@gmail.com. If your child bought credits without your knowledge, you can request a refund through Google Play, where you can also require confirmation for every purchase.

4. Your music and your MIDI files

• Piano Weave is designed for personal music learning and practice.
• Submitting content: Submit links, files and recordings with respect for those who wrote and performed them. What the law allows depends on the country you live in. These Terms don't change that.
• Personal practice and copyright law: In many countries, copyright law provides exceptions or limitations that may permit copying or using music for private, non-commercial purposes, personal study, or similar activities, subject to applicable statutory conditions. Making a transcription for your own piano practice may therefore be permitted, depending on the applicable law, the source, and the circumstances. This does not automatically permit publishing, sharing, selling, or otherwise distributing the transcription. Public availability alone does not establish permission to download or copy a recording, and rules differ between countries.
• Platform terms and access restrictions: Statutory copyright exceptions for personal study do not override or alter third-party platform terms of service or technical access restrictions. Using Piano Weave or the Server does not grant rights under third-party platform contracts or resolve separate platform-access requirements.
• Sharing and distribution: A transcription is an adaptation of someone else's work. Copyright law usually reserves publishing, sharing and selling it to the composer, unless the work is already in the public domain. Don't publish, sell or distribute someone else's music without its creator's permission. Don't submit pirated files, or recordings of people who don't know they are being recorded or haven't agreed to it. If you distribute someone else's work without permission, its creator may bring claims against you. I am not responsible for such use (see section 9).
• You keep all rights you have to what you submit. You allow the Server, and where needed third-party processing providers working for me, to process your submission solely to generate your transcription. Files and recordings are deleted shortly after processing; a short record of the transcription, including any video link, is kept for a limited time for operational and diagnostic purposes (see the Privacy Policy).
• Transcriptions are generated by AI models. They are an approximation of the music, not an exact published score, and may contain inaccurate or missing notes. An arrangement is the whole song adapted for piano by AI models: an approximation of how it might sound on piano, not a transcription of what is played.

5. Rules

• Don't submit content that harms others: someone else's work against its creator's will, recordings made of someone without their knowledge, or content spreading hatred.
• Don't overload or attack the Server, try to break into it, or get around its limits or billing.
• Don't use automated tools to send transcriptions in bulk, and don't resell access to the Server.
• Don't use the App's code in ways its license (PolyForm Noncommercial 1.0.0) doesn't allow.

If someone breaks these rules, I may refuse their transcriptions or block their access to the Server, and in serious cases end the agreement (see section 8). If you think this happened to you by mistake, write to me: I will explain why and consider your response.

6. Credits and purchases

• What credits are: when transcription on the official Server is paid, 1 credit pays for 1 minute of audio. The App shows the cost before you start.
• Purchased vs. promotional credits: your balance may consist of purchased transcription credits (bought via Google Play) and free promotional credits (such as monthly grants or bonus minutes).
• Buying: credits are sold through Google Play, which handles payment processing. Prices are displayed in Google Play before purchase.
• Purchases and right of withdrawal: purchases are processed through Google Play Billing. When you buy credits, payment processing, withdrawal rights, and refund requests are handled through Google Play under its purchase procedures, the terms presented during purchase, and mandatory applicable law. Adding credits to your account does not waive statutory consumer remedies where mandatory law provides them.
• Refunds and statutory remedies: requests for refunds or payment cancellation should be submitted through Google Play. Recourse to Google Play's refund process does not exclude any mandatory legal obligations or remedies provided by applicable consumer protection law.
• Using credits: credits are taken when the Server accepts a transcription. If you cancel it, credits for the part already processed are kept. If a transcription doesn't finish for any other reason, its credits are returned.
• Limits: credits don't expire, can't be exchanged for money, and can't be moved to another account.
• Account deletion: deleting your account removes your account data and credit balance. Free promotional credits are forfeited upon deletion. Deleting an account does not automatically process a refund for unused purchased credits, but does not affect any mandatory statutory rights to a refund or other remedies under applicable law.
• Service shutdown: if the service is permanently shut down, notice will be provided in the App at least 30 days in advance so that credits can be used. Where required by applicable law, remaining purchased credits will be subject to appropriate remedies or refunds. Free promotional credits expire upon shutdown without compensation, subject to mandatory law.

7. Availability and changes

I work to keep the Server running, but it may sometimes be unavailable, for example during maintenance or outages. I may improve or change features, including whether transcription on the official Server is free or uses credits. Changes won't take away the credits you already have. Transcription speed and availability may vary with load and with whether a job runs on my own hardware or at a third-party provider. I am not responsible for outages of third-party providers beyond what these Terms and consumer law require.

8. Ending the agreement

• You can stop using the App at any time. To also remove your account and data, use the account deletion page.
• I can end this agreement with 30 days' notice by email or in the App, or straight away if you seriously break these Terms.

9. Responsibility

I am responsible for providing the App and Server as described in these Terms. I am not responsible for losses you could not have expected when you started using the App, for problems caused by other servers, other apps or Google services, or for how you use your transcriptions. Nothing in these Terms limits your rights under consumer law, or my responsibility where the law doesn't allow it to be limited.

10. Complaints

• Email contact.lumenchord@gmail.com. Tell me what went wrong and, if it's about a transcription or purchase, the song or the date.
• I will reply within 14 days.
• If we can't agree, consumers in Poland can get free help from their local consumer ombudsman (miejski lub powiatowy rzecznik konsumentów) or the Trade Inspection (Inspekcja Handlowa). Consumers in other EU countries can contact the European Consumer Centres Network.

11. Law and disputes

These Terms are governed by Polish law. If you are a consumer, you also keep the protection of the mandatory consumer laws of the country where you live, and you can bring a dispute to the courts there.

12. Changes to these Terms

I may update these Terms for valid reasons, for example when the App or its features change or the law requires it. I will tell you by email to the address linked to your account or in the App at least 14 days before a change takes effect. If you don't agree, you can stop using the App and delete your account before then. Changes that are only in your favor, purely editorial, or required by law on a shorter deadline may take effect immediately (or by the deadline the law sets).

13. Above all

Above these Terms and above every law is God: the God of Abraham, Isaac and Jacob, the God of many others, mine included: the Father, the Son - Jesus Christ, and the Holy Spirit. Whatever in these Terms or in any law does not align with His will does not apply. Whatever He decides does apply.

He is the God of freedom. You don't have to agree with section 13 to accept these Terms. It is my own statement and my decision: I place these Terms under His will rather than relying on any law. This, as I believe, always works in your favor.