Privacy policy

Last updated 14 November 2026

We will never sell any data we collect, ever.

Piano Ear Training is run by PT Lunsbok Tech Group.

What stays on your device

Your practice history is kept in your browser, on your device:

• every answer, with the notes you played and when, plus your settings, the missed list and your stats (in IndexedDB)
• your light or dark choice, whether you’ve seen the tour, and whether you’ve answered the “say hello” card (in localStorage)
• the question you’re on and the screen you have open, so a reload doesn’t lose them (in sessionStorage, which the browser clears when you close the tab)

The history itself is never sent to us. Progress and backups, in the trainer’s menu, downloads it as a backup file and restores it, in this browser or another. Clearing this site’s data in your browser deletes it, and we have no copy to restore.

No accounts, no signup

There’s nothing to sign up for and no login, so we don’t have your name, your email address or a password.

What we collect

The site uses Google Tag Manager to load Google Analytics, which counts visits. For each visit, Google Analytics records:

• the pages you view, and the page or site that sent you here
• your rough location (country and city), which Google works out from your IP address; Google Analytics doesn’t store the IP address itself
• your device, operating system, browser, screen size and language
• how long you stay, and interactions such as scrolling down a page or following a link to another site

In the trainer it also records how the trainer is used:

• which screen you open (Practice, Results, Settings or Feedback)
• each melody asked and finished: the tune’s name, its key and length, the level, the hints and scoring mode, whether it was right first time, the number of mistakes, restarts and replays, and how long it took
• skips, replays, Show answer, the piano shortcuts, Test sound and Silence, and level changes and suggestions
• which setting you change, and to what (for MIDI devices, only whether one is chosen)
• whether MIDI is allowed, and your keyboard’s model name, such as “Roland Digital Piano”
• backups downloaded or restored (with the number of answers and, for a download, which kind of backup it was), the feedback page’s buttons, the theme, the on-screen keyboard, the tour and the “say hello” card

These events don’t include the notes you play, your name, your email address or the device ids of your MIDI ports.

Cookies

Google Analytics sets two first-party cookies, _ga and _ga_…, to tell one visitor from another and to group page views into visits. They last up to two years. The site itself sets no other cookies.

Google’s part, and how to opt out

Google handles this data under its own policies; it explains how in How Google uses information from sites or apps that use our services. To turn Google Analytics off on every site you visit, install the Google Analytics opt-out browser add-on. Blocking cookies or content blockers work too, and the trainer works the same without Google Analytics.

Other services the site relies on

• Amazon CloudFront (Amazon Web Services) serves the site. Like any web server, it can keep standard request logs, with your IP address, the address you asked for and your browser, for a limited time, to run and protect the site.
• When there’s no MIDI device to play melodies on, the trainer downloads piano recordings from smpldsnds.github.io, hosted by GitHub. GitHub sees your IP address when it sends them, as any website does.
• The site’s fonts and everything else are served from this site.

If you email us

If you write to hello@pianoeartraining.com, we keep the conversation so we can reply to you, use it for nothing else, and delete it when you ask.

Changes to this policy

If this policy changes, the new version goes on this page with a new date at the top.

Contact

PT Lunsbok Tech Group, hello@pianoeartraining.com. See also the terms of use.