♩Clef:
Read music like you read English.Three minutes a day.
A 3-minute spaced-repetition drill that rewires how fast you name notes on the staff. Built for adults who already play — not beginners in a cartoon world.
Coming soon to the App Store
SESSION COMPLETE
You just did a Clef session.
That's one rep. Get a new one every day — join the waitlist.
THE PROBLEM
You already play. You can read a chord chart, find middle C, probably fumble through a lead sheet. But naming notes on sight — fast, without counting up from a reference line — still feels like decoding instead of reading. Song apps don't fix this: they teach you the shape of one piece, your fingers memorize the pattern, and your eyes never have to name a note under time pressure. Reading fluency is a recall skill, like vocabulary. It gets faster when you isolate it, repeat it in short bursts, and get told instantly when you're wrong — not when you play through a song once a week.
HOW IT WORKS
Three minutes, three steps.
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See a note.
A single note lands on the treble staff, the same place it would sit in real sheet music. No warm-up, no menu.
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Name it, fast.
Tap the letter, press a key, or play it on a MIDI keyboard. The clock is running, so you answer on instinct, not by counting up from middle C.
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Let the scheduler remember.
Clef tracks exactly which notes trip you up and brings them back before you forget them. Spaced repetition, not blind repetition.
ON iOS
See it before you download it
FOUNDING MEMBERS
Get Clef before the App Store does.
Founding members lock in launch pricing and get Clef before the public App Store release. There's no public date yet — join now and you're first in line.
QUESTIONS
Before you join
Why not just use Duolingo or a gamified app?
Gamified apps optimize for engagement: streaks, mascots, points you chase instead of skill you build. No cartoon owl. No guilt trips. Just the drill — one screen, one goal, name the note as fast as you can, so every rep is real practice.
What will Clef cost?
Clef launches with a straightforward price — final numbers land at launch. Founding members who join the waitlist before then lock in the lowest price Clef will ever charge.
When does Clef launch on the App Store?
There's no public date yet. It's in active development for iOS. Join the waitlist and you'll get one email the day it opens, with founding-member pricing if you joined before then.
How do I learn to read sheet music?
Reading sheet music is a recall skill, so it responds to short, frequent practice more than long study sessions. Start with the treble clef, learn where each line and space sits, then drill naming notes until it stops feeling like decoding. A few minutes a day beats one long weekly session.
What is the best way to practice note reading?
Rapid repetition with immediate feedback. Instead of reading through songs, isolate the single skill of note identification, answer as fast as you can, and let a scheduler resurface the notes you get wrong more often. That is what this trainer does in a 3-minute session.
Is this a good sight reading trainer for beginners?
Yes, if you already know what a staff is. It focuses on treble-clef naturals from C4 to C6, weighted toward the notes on the staff with occasional ledger lines, so beginners build the core reading reflex before adding accidentals and other clefs.
Can I use a MIDI keyboard for this name-the-note game?
Yes. In browsers that support the Web MIDI API, connect a MIDI keyboard and play the note you see. Matching is by letter name and ignores octave, so any C answers a C. You can always tap the on-screen keys or use your computer keyboard instead.
How do I remember the treble clef notes?
The lines from bottom to top are E, G, B, D, F and the spaces spell F, A, C, E. Mnemonics get you started, but fluency comes from drilling until you no longer count up from a reference note. This name-the-note game is built for exactly that.