Piano · your own playing
Transcribe your piano to sheet music.
Play it once — read it back as notation.
Record the piece you just played and Matra writes it down: melody on the staff, chords above, key and meter set. Capture your own improvisations and arrangements before they slip away — correct anything it flags, then export.
Free during early access · no card · private by default
How it works
Record or upload
Your own playing, a voice memo, a hum — up to six minutes. The exact Token price is shown on the file before anything is charged.
Matra writes the chart
Chords, key, meter and melody — drafted in about a minute, with confidence on every chord.
Fix, then keep it
Correct anything with a tap; the engine learns from it. Export PDF, MusicXML or MIDI — free, and free again next time.
What you get
One recording in — a whole chart out.
- Staff notation from your piano recording (beta — young and honest about it)
- Chords and key detected, with per-chord confidence
- MusicXML into MuseScore, Sibelius, Dorico · MIDI into your DAW
- Western ⇄ sargam, one tap apart
- Transpose in a tap — instrument view tuned for piano
Questions, answered
Does it work on a phone recording of my piano?
Yes — a clean, close recording works best, from your phone or the iOS app. Solo piano is one of the engine's stronger cases.
How accurate is it?
Chords and key are our strongest outputs and carry per-chord confidence so you always know what to trust. Staff notation is early access — honest but imperfect today, and improving as the engine trains on more recordings.
Can I get the chords of a famous song?
Matra works on audio you have — your own playing, your recordings, your practice takes. We don't host or publish transcriptions of copyrighted songs. If you can play it or record it, Matra can chart it.
What does it cost?
Right now — nothing. Matra is free during early access (fair use: about 20 recordings a day), and every file still shows its real Token price so there are no surprises later. The meter: about 1 Token per 15 seconds, a typical 3½-minute recording ≈ ◇14. When billing starts, early-access musicians keep ◇600 — plus half price for 3 months and 25% off the rest of their first year. Sargam and notation views cost nothing, ever.
Is my audio private?
Yes. Uploads are private by default, nothing you make is published anywhere, and we never train on your audio.
Built with the musicians who use it.
Matra is in early access. Fix a chord or a note the engine got wrong, and we gift you Tokens as thanks — your ear makes the engine better for everyone.
Free during early access · founders keep ◇600 when billing starts