In short: your audio never leaves your computer. To improve Blendure we learn from which of its results you heart, refine or export, and you can switch that off in Settings. The notes of your own tracks are kept only if you choose to share them.
What happens to your music
Blendure reads your audio and MIDI files in your own browser. Your audio is never uploaded. To write results, our server receives the notes heard in your track (pitches and timings, not sound). It uses them to build each request for the model and then forgets them, unless you chose to share your tracks' notes (below).
What we keep
Your account: your email address, whether it's confirmed, your plan, and when you joined and last logged in.
Daily use: how many times you pressed Generate and More like this each day, to apply the daily limits.
Your picks, to improve Blendure (on unless you switch it off): the notes of results you heart, refine with More like this, or export, with their tempo, key and style; for each Generate, the notes of the results it showed you and which ones you played, so Blendure can learn which results people prefer; and a summary of each sample you use: its key, tempo, style and chord per bar. The summary never includes the melody or the notes themselves, so nothing recognisable of anyone's song is kept. These records don't contain your email; they carry a code that only our server can link back to your account, so we can delete them if you ask.
Your tracks' notes, only if you choose to share them (off unless you tick the box): the notes heard in the tracks you upload, so the model can learn what fits a track like yours. Never the audio.
Files you keep in the app (your hearts and their previews) stay in your browser's storage on your computer.
Why
To run the service: your account, the daily limits, and making files for paid accounts.
To improve Blendure: we use picks to make better results more likely and to show the best ones first, and from time to time to train our models further. This is in our legitimate interest in improving the product, and you can object at any time by switching it off.
Your tracks' notes are used for training only with your consent, which you can withdraw at any time.
Sharing your tracks' notes
If you tick "Share the notes of the tracks I upload", you confirm that the music you share is your own or that you have the rights to it, and you get 5 extra Generates a day and 5% off Pro when it opens. You don't have to: everything else works the same without it. If you switch it off later, the extra Generates stop and we delete the notes we kept from your tracks.
Your choices
Settings in the app has both switches. Turning off "Help improve Blendure" stops recording your picks and sample summaries and deletes the ones we kept. Turning off sharing deletes your tracks' notes.
You can ask for a copy of what we keep about you, ask us to correct it, or ask us to delete your account and everything linked to it.
Who helps us run Blendure
Google (Firebase and Google Cloud, servers in the EU): sign-in, our database, the website and our server.
Cloudflare (Turnstile): the human check when you sign up or log in.
Lemon Squeezy: payments for paid plans, as the merchant of record. It receives your payment details and email; we never see your card details, and keep only your plan, credits and subscription status. See also our terms.
We don't sell your data or show ads.
How long
Account details and daily use are kept while you have an account. Picks and shared track notes are kept until you switch them off or delete your account. Models already trained can't un-learn single examples, but your records are no longer used for any new training once deleted.
Contact
A contact address for privacy requests will be added here before paid plans open. Until then, you can switch both options off in Settings at any time.