Free while in beta
Clef is free while it is in beta. You create an account without a card, and there is no trial clock and nothing held back. The first50 founding members also get a direct line to the founder, whose feedback visibly shapes the product, and their catalog requests go to the top of the curation queue.
What happens when pricing arrives
- Nothing converts automatically. A paid plan will be a separate choice you make then, never a charge that appears on its own.
- You hear about it first. The change will be announced well before anything about your account changes.
- Founding members keep preferential terms. Joining during the beta is the best deal Clef will ever offer.
What's included
Everything. There are no tiers or add-ons:
- Practice mode with per-note MIDI feedback — green when you're right, red at the exact spot when you're not. Start from any bar, with a built-in metronome.
- Memorization built on spaced repetition: bar-sized from-memory reviews scheduled right before you'd forget, plus checkpoint run-throughs that join short stretches into progressively longer ones.
- Every practice take is saved — listen back in the app any time, or export it as a standard MIDI file.
- A per-bar tempo map: turn on the metronome and Clef remembers the fastest tempo you've played each bar cleanly.
- Bounded daily sessions with a completion screen, streaks, and a practice heatmap.
- The full curated classical catalog, with piece requests and voting.
- English and German.
What you need
A digital piano or keyboard with USB-MIDI, plus either the Android app from Google Play or a laptop or desktop running Chrome, Edge, Brave, or desktop Firefox. Details are on the Getting Started page. Clef cannot hear an acoustic piano, and there is no iPhone or iPad app yet.
Common questions
Why is Clef free right now?
Clef is young and run by one person. During the beta the priority is a small group of pianists practicing every day and shaping the product, not billing. Paid plans come later, announced ahead of time.
What does "preferential terms" mean?
Accounts created during the beta will get a better deal than anyone who joins after pricing arrives. The exact terms will be published with the paid plans, and beta members will be told before anything changes.
What happens when the 50 founding seats are taken?
The signup button becomes a waitlist for the second cohort. Joining the waitlist costs nothing.
Ready?
Create your free account and start practicing. The terms above are the whole deal, and there is nothing else in the fine print.