Every bar, heard.

A piano practice coach that listens as you play. Coming to iPhone and iPad.

Bar 24, left hand. You played D where the score has C‑sharp.

How it works

  1. Play.

    Put the music on the stand and play it the way you would for your teacher. Nothing to press.

  2. It listens.

    It follows along in your score, bar by bar.

  3. It marks the bar.

    On your page, right where you’d pencil it in.

  4. It tells you.

    Three slips, two that matter: bar 24, left hand, and 29 to 31 rushing. Try 29 to 31 slower.

  1. Bar 24, left hand, beat 4.

    You played D. The score has C‑sharp.

  2. Bars 29 to 31.

    You sped up a little each bar. Loop them slower, with the metronome on the page.

iPad on the stand. iPhone in your hand.

The same coach on both.

Pianist AI on iPad Pro: the Ballade with bar 24 shaded, the coach’s line of light and its reply, and the bars it found.
Pianist AI on iPhone 18 Pro: the coach’s reply and the bars it found, each with its picture from the score.

Talk to it. Or just play.

It answers out loud in a sentence or two, and stops as soon as you speak or play.

Do you want to start from the coda or from the top?

Interrupt it any time

Watch a bar get better.

Every take is kept. In this example, the C‑sharp slipped in three takes of four on Monday. By Friday, in none.

  1. Monday: 3 of 4 takes had the slip.
  2. Tuesday: 2 of 4 takes had the slip.
  3. Wednesday: 1 of 4 takes had the slip.
  4. Thursday: 1 of 5 takes had the slip.
  5. Friday: all 5 takes clean.

One page for your lesson.

What got better, what’s still open and your questions. Share it with your teacher.

Ballade No. 1Chopin · Op. 23

  • Better

    Bar 24 of the Ballade, with no mark left on it.

    Clean in all five takes on Friday. Bar 24, left hand.

  • Still open

    Bars 29 to 31 of the Ballade, with the coach’s pencil line over them.

    Still rushing. Bars 29 to 31.

  • Your question

    Bar 40 of the Ballade.

    “Is my pedal in bar 40 too long?”

Your recordings are yours.

  • Delete a take, a piece or everything, right in the app.

  • Training on your recordings is off unless you turn it on.

  • No ads. We don’t sell your information. No tracking across apps.

Made for piano majors.

For the music you’re preparing for juries and recitals.

  1. Partita No. 2Bach · BWV 826

    The opening bars of Bach’s Partita No. 2.

  2. Sonata No. 30Beethoven · Op. 109

    The opening bars of Beethoven’s Sonata Op. 109.

  3. La cathédrale engloutieDebussy · Préludes I

    The opening bars of Debussy’s La cathédrale engloutie.
  • Your own edition. A photo, a PDF or MusicXML.
  • It listens for notes and timing. Tone is still between you and your teacher.
  • iPhone and iPad. In English, in the US first.

Every bar, heard.

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