Made for songwriters
Your voice memos, finally readable.
Every half-finished idea, written down and searchable.
That folder of 2am voice memos is full of songs you can’t read back. Drop one into Matra and get a lead sheet: melody on a staff, chords, key. Export into your notation editor or DAW.
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.
- Voice memo or demo → lead sheet with melody, chords, key
- MusicXML into your editor · MIDI into your DAW
- Own audio only — zero copyright worry, fully private
- Sargam view if you write in Sa Re Ga Ma
- Transpose in a tap, with capo suggestions
Questions, answered
Does it work on a rough phone demo?
Yes — a clean, close recording works best, but rough demos of your own playing or singing are exactly the use case. Busy full-band mixes are harder; the confidence marks show what to check.
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.
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