Privacy

Last changed 11 November 2026

Chordhalla sets no cookies, and accounts are optional: one only keeps your licence key for you. You can use all of it without telling us who you are. Your settings stay in your own browser. With the full version, the sheets and sets you save are kept online for you as well, under a code made from your licence, which stays the same if you replace the key.

Who we are

Chordhalla is made by Pyrokinesis Ltd, a company in New Zealand. If you have a question about this page, or about anything we hold about you, write to contact@chordhalla.com.

What stays in your browser

So that you do not have to set things up on every visit, the site keeps a few things in your browser’s own storage:

None of this is sent to us or to anyone else. It is not a cookie, and no other website can read it. (A progression’s link carries its chords in the address itself, so whoever you give the link to can open it; nothing is stored anywhere to make that work. A metronome style shared by link is the same: its beats, tempo and name are written in the address.) Clearing this site’s data in your browser removes all of it. In a private window nothing is kept once you close it.

What other computers see

Showing you a web page means your browser has to ask a computer for it. These are all the computers the site asks:

That is the whole list. There is no advertising on the site, and nothing that follows you from one website to another. The sound you hear is made in your browser. Chords are worked out in your browser too: what you search for is not sent anywhere.

The full version

The full version is sold through Polar, who take the payment, send the receipt, handle the tax and email you a licence key. We never see your card. An account with us is optional (see Signing in below).

Signing in

An account is optional. It keeps your licence key for you, so that signing in, in any browser, turns the full version on without finding and pasting the key. You sign in with a six-digit code emailed to you, or with Google or Apple: there is no password.

Messages you send us

The Contact page sends us what you write, the kind of message you picked, the page on this site you came from, and your email address if you give one. They are kept in a database run by Cloudflare for us alone. We read them to improve the site and to answer you, and use your email address for nothing else. Ask, and we delete what you sent.

Your rights

You can ask us what we hold about you, and ask us to correct it or remove it. Because the site has no accounts and gathers nothing, the answer will almost always be: nothing. Write to contact@chordhalla.com and we will answer within 20 working days.

These rights come from New Zealand’s Privacy Act 2020 and, if you live in the European Union or the United Kingdom, from the data protection law there (the GDPR). If you are unhappy with our answer you can complain to the Office of the Privacy Commissioner in New Zealand, or to the data protection authority where you live.

Children

Chordhalla is made for people learning to play, of any age. It gathers nothing about anyone, so there is nothing about children for us to hold.

When this page changes

If the site starts doing something new with information, such as accounts for saving your work, this page will say so before it happens, and the date at the top will change.