Clef: Sight Reading Trainer

Clef - Piano Practice

Three minutes of piano drills a day, scheduled around what you're about to forget.

Clef is a practice app for people who play piano — or want to. Not songs, not videos: focused drills, graded by how fast you actually answer and resurfaced by a spaced-repetition engine (FSRS) at the moment you're about to forget.

THE DRILLS

• Note Naming - treble and bass, landmark notes first
• Grand Staff - both clefs, interleaved
• Ledger Notes - the notes hanging above and below the staff
• Intervals - the distance between two notes, at a glance
• Key Signatures - sharps and flats, in circle-of-fifths order

Scales, arpeggios, chords, and progressions are coming next. Founding users get them as free updates.

BUILT FOR THE INSTRUMENT Connect any MIDI keyboard and play your answers - any octave counts. Or tap the note names and the on-screen keys.

THREE MINUTES, HONESTLY SPENT Every session is a countdown. Every answer is timed. No lives, no gems, no guilt trips - just a results screen that tells you the truth: what you got, your best run, and the odds you'll still remember it next week.

MADE FOR ADULTS Paper, ink, and one gold accent. Serif type. Tell Clef what you're working toward - reading sheet music fluently, getting a rusty skill back, passing a grade exam - and your daily practice weights itself accordingly.

Three minutes a day. That's the whole ask.

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