Analysis & practice · 7 min
Choose a chord progression, then check it by ear
Build a four-chord idea in C major, bring its MIDI into your session, and use audio chord estimates to explore a reference recording.
Read the storyTUNENOODLE / Free · runs in your browser
Audio chord analyzer
Analyze the chords in an audio file: a chord timeline with confidence, an estimated key and tempo, click-to-locate playback, and TXT or CSV export. Runs locally in your browser.
In your browser · no upload
Audio chord analyzer
Turn an audio file into a chord timeline with an estimated key and tempo. Analysis stays on this device and only common triads are named — anything unclear is reported as unknown instead of guessed.
Parameter / option
| Parameter / option | What it changes |
|---|---|
| Detection sensitivity | Higher values name more chords; lower values keep only confident matches. |
| Chord timeline | Load a file and run the analysis to see its chord timeline. |
| Play from here | Only major and minor triads are named. Dense mixes, seventh chords and inversions usually read as unknown or as the nearest triad. |
How to use it
- 1
Choose an audio file
- 2
Analyze chords
- 3
Download CSV
Good questions
No. Processing stays in this browser and the original file is not uploaded.
Your next step
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Audio chord analyzer
In your browser · no upload