Ambitus
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Play
Phone on the stand, nothing to configure. Ambitus recognises the piece and follows along bar by bar while you play the way you were going to play anyway.
An iOS app for violin & piano · coming to the App Store
You’ll know when
you’re ready.
Ambitus listens while you practise, judges every note against the score, and drills the passages that aren’t ready yet — so exam day is a formality, not a gamble.
Chopin — Nocturne in E♭ major, Op. 9 No. 2
Score-aligned exam repertoire, always growing
Bach · Partita No. 2◆
Debussy · Clair de lune◆
Chopin · Nocturnes◆
Trinity syllabus · Initial → LTCL◆
ABRSM syllabus · Grade 1 → LRSM◆
Scales & arpeggios◆
Kreisler · Praeludium & Allegro◆
Elgar · Salut d’Amour◆
Beethoven · Sonatas◆
Scan your own score◆
If you can hear it yourself, you don’t need us. Ambitus exists for everything you can’t: the note that sounds right but isn’t, the bars that break one time in four, the tempo that drifts under pressure — heard, judged, and turned into the week’s practice.
Play. Read the verdict.
Drill what breaks.
Read the verdict
Every note painted on your own score — hit, missed, suspect, or not reached — plus a ranked map of the passages that keep breaking, each with a reason.
Drill what breaks
The Cadence Loop isolates the worst passage, counts you in, and raises the tempo only after clean passes. 60% to full speed, one earned step at a time.
Built to hear what
gets missed.
The wrong note that sounds right
Most apps only catch out-of-key clunkers. The expensive mistakes are the polite ones — a B where the C belongs, perfectly in key, quietly costing marks. Ambitus reads your playing against the score itself, so the note that sounds fine and isn’t shows up in turquoise.
Chords and double-stops included: both hands on piano, multiple strings on violin, ornaments graded as a gesture rather than punished note by note.
Bar 35 · expected vs heard
Expected: CPlayed: B
One step down · in key · flagged suspect
Score the objective. Describe the expressive.
A “steadiness score” trains robots — lingering on the note that matters is called musicianship. So Ambitus draws a hard line. Things with a right answer get scored: the notes, the evenness of a scale. Everything expressive gets described: your tempo as a picture, set against the corridor where professional recordings agree.
Where the masters agree, the corridor is narrow. Where interpretation is free, it widens. You see where you sit — nothing grades your rubato.
Tempo · you, against the corridor
Described, never scored
Practice that administers itself
After every run, a trouble map: the passages that keep breaking, ranked, each with a cause — hesitation, intonation, a wrong note — not just a number. The Cadence Loop then takes over: it isolates the passage, counts you in, and advances the tempo only when you’ve earned it.
No streaks. No confetti. The loop ends when the passage stops being trouble.
Trouble map · today’s run
| # | Bars | Why |
|---|---|---|
| 1 | 12–15 | Hesitation / stop |
| 2 | 22–23 | Intonation ~26¢ flat |
| 3 | 35 | In-key wrong note |
| — | 41–48 | Clean · left alone |
Drill · bars 12–15 · tempo ladder
60708090100
80% — two clean passes to advance
DressRehearsal
Performing is a different skill from the piece — so it gets its own training. One take, cover to cover, no restarts, under staged pressure: the backstage wait, the jury room, the full hall. Afterwards, the autopsy: where nerves cracked you, measured against your calm baseline. Add Apple Watch for heart rate on the chart.
Auditions are played from memory, so memory is measured on its own: score-hidden mode grades recall, models how it decays, and times refreshers to peak on the date that matters.
Nerves · first rehearsal → four weeks later
Backstage→Jury→Hall
Bring your own repertoire
The catalogue is built around the graded-exam world — board syllabi up through the diplomas, every piece score-aligned so the engine can follow you bar by bar.
And when your piece isn’t there, photograph it. The scanner turns a clean score — PDF or phone camera — into a piece Ambitus can grade.
Scan · from the stand to the engine
Photo or PDF → gradeable score
For students, self-learners,
teachers, and parents.
Exam students
A dated exam and a syllabus to survive. Ambitus turns every practice session into evidence — and the weeks before the exam into rehearsed, pressure-tested runs.
Adult self-learners
No teacher in the room. Ambitus covers the teacher’s first job — catching what you can’t hear yourself — and administers practice that actually compounds.
Teachers
Assignments with focus bars, your words attached to the passage they belong to. Pupils join with an invite code, and the six days between lessons finally report themselves.
Parents
The honest version of “did practice happen?” — what was played and how it’s moving, not minutes next to a timer. No nagging required.
Practice apps count minutes.
Ambitus counts evidence.
A typical practice app
- A percentage and a streak
- Catches only out-of-key clunkers
- Scores your “steadiness”
- “Play it again from the top”
- Exam day: hope
Ambitus
- Every note judged, on the score itself
- Flags in-key wrong notes
- Describes expression against pro recordings
- Loops the four bars that actually break
- Exam day: rehearsed, under pressure, on record
Frequently asked questions
- Which instruments does it support?
- Violin and piano at launch. Cello and the other strings will follow as each reaches the same standard.
- Do I need special hardware?
- No. Your phone on the stand, using its own microphone. No pickups, no MIDI keyboard, no setup screen.
- Which exams does it map to?
- The graded-exam world — board syllabi up through the diplomas. But Ambitus grades pieces, not certificates: anything in the catalogue, or anything you scan in, works.
- Will it grade my musicality?
- No — by design. Notes and scale-evenness have right answers, so they’re scored. Rubato, shaping, and tempo are described against real recordings, never reduced to a number to optimise.
- What happens to recordings?
- They’re used to grade your playing, and they remain yours. We don’t sell audio, and we don’t train models on children’s recordings.
- When can I get in?
- iOS first, in waves, in waitlist order. Join below and we’ll email you when your seat opens.
Get early access.
iOS first, in waves, in waitlist order — the earlier you join, the sooner your seat opens.
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