Terms

Terms of use

The rules for using JazzSync and paying for it, in plain words.

Last updated: 19 October 2026

This page is a translation. If it differs from the English version, the English version applies.

Who we are

JazzSync is a jazz piano learning app made by Dima, a jazz pianist and teacher. It is run by DMusic, the business of Dimitry Minishin, sole trader (“we”, “us”). You can reach us at any time at [email protected]. By creating an account or buying a plan you agree to these terms.

DMusic · Dimitry Minishin
P.O. Box 0637, Kfar Vradim 2514700, Israel
[email protected]

What JazzSync is

JazzSync teaches jazz piano: theory and harmony, voicings and forms, practising on your keyboard, lines and phrasing, scales over changes, ear training and the JazzSync books. You play on a MIDI keyboard or on the keys on the screen, and the app checks what you play. Some lessons are played with a band (bass and drums). The app works in a web browser; MIDI needs a browser that supports it, such as Chrome or Edge on a computer.

We keep improving JazzSync, so lessons, levels and features can change over time. We will not take away the main parts of a paid plan while it is running.

Your account

Plans and prices

Prices are in US dollars. At checkout you may see the price in your own currency, and the sales tax or VAT of your country is added where the law requires it.

Founders and Early-bird prices stay the same for as long as your yearly plan keeps renewing without a break. If you cancel and come back later, the plan’s price at that time applies.

Payments through Paddle

Our online reseller is Paddle.com. Paddle is the Merchant of Record for all JazzSync orders: it sells the plan to you, takes the payment, adds the right tax, and sends your receipts and invoices. Paddle also handles refunds and payment questions. Paddle’s buyer terms apply to the payment itself. We never see or store your card number.

The free week

Paid plans start with a 7-day free trial. You give a payment method at the start, but nothing is charged during the 7 days. If you cancel before the trial ends, you pay nothing. If you don’t cancel, the first payment is taken when the trial ends. One free trial per person.

Renewal and cancelling

Refunds

See our refund policy.

Price changes

If we change the price of a plan, we email you at least 30 days before your next payment at the new price, so you can cancel first if you wish. Founders and Early-bird prices don’t change while your plan keeps renewing.

Using JazzSync fairly

What stays yours

Your takes, answers and forum posts stay yours. You allow us to store them and to use them only to run JazzSync for you (for example to show your progress, or to show your post in the forum). Our privacy page explains what we store and why.

Music you enter: tunes, lead sheets and takes

JazzSync lets you play and save music: your takes, and (when the lead-sheet builder opens) the chords and melodies of tunes you write down. The music you enter is your responsibility.

If you believe something in JazzSync uses your work without permission, write to [email protected] with your name, the work, where you found it in JazzSync, and why you believe it infringes your rights. We look at every complaint quickly and remove the material when it infringes. We may close the account of someone who repeatedly shares protected music.

If something goes wrong

We work hard to keep JazzSync running and correct, but we can’t promise it will always be available or free of mistakes, and it depends on your browser, device and internet connection. As far as the law allows, we are not responsible for indirect losses, and our total responsibility to you is limited to what you paid us in the last 12 months. Nothing in these terms takes away the rights you have as a consumer under the law of the country where you live.

Ending an account

You can stop using JazzSync and delete your account at any time. We may suspend or close an account that seriously or repeatedly breaks these terms; if that happens to a paid plan without good reason, we refund the unused part.

Which law applies

These terms are governed by the law of Israel, where DMusic is based. If you live in another country, this doesn’t take away the protection that the consumer law of your country gives you.

Changes to these terms

If we change these terms, we update the date at the top. For important changes we email you before they apply to you.

Contact

Questions about these terms: [email protected]. Questions about a payment or a receipt: Paddle, at paddle.net, or write to us and we will help.