Chord finder · free to try
The chord finder that shows its confidence.
Every chord, and how sure the engine is about it.
Upload or record your playing and Matra writes the chords — with key, tempo and meter. Green dot means trusted; orange means check this. No guessing which chords to believe.
Free during early access · no card · private by default
It tells you when it isn't sure.
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.
- Chords with per-chord confidence — green means trusted, orange means check
- Key, tempo and meter, detected from the audio
- Staff notation / lead sheet (beta — young, and honest about it)
- Native sargam view — Sa Re Ga Ma, komal and tivra written properly
- Transpose in a tap, with capo suggestions for guitarists
- PDF, MusicXML and MIDI exports
Questions, answered
How does the chord finder work?
Drop in a recording or play into your mic. The TAAL engine analyses the audio and writes the chord chart — chords, key, tempo, meter — in about a minute, with a confidence dot on every chord.
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.
Which instruments does it work with?
Any audio: guitar, piano, voice, harmonium, full-band recordings. Busy mixes are harder — that's exactly what the confidence dots are for.
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.
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.
Your first chart is on us.
600 Tokens free with an account — about 42 recordings. No card, no subscription, price always shown before you spend.
Free during early access · founders keep ◇600 when billing starts