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Song chord finder

Drop audio here or click to chooseMP3, WAV, M4A or OGG · up to 20 minutes for automatic chord sheets
Click this box or drag the audio anywhere on this page.
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About this tool

Use the harmonic analyzer to get a likely chord timeline.

How to use

  1. Choose the audio file.
  2. The tool builds a reduced harmonic representation and detects chords.
  3. Listen back, review the timeline and copy or download the progression.

How chords are estimated

The tool compares short sections of the recording and looks for note combinations that resemble known chords.

The system then smooths very fast changes so passing notes are less likely to become a new chord every fraction of a second.

What can confuse detection

Bass notes, melody, vocals and effects may introduce notes that do not belong to the basic chord label. Inversions and extended chords can also have more than one reasonable interpretation.

Use the timeline as a guide and confirm difficult moments by listening. When a label looks wrong, compare the previous chord, the next chord and the bass movement before editing.

  • Inversions may resemble a different root chord
  • Distortion and reverb reduce harmonic clarity
  • Modulations require more contextual interpretation

How to use the result

Once you have a sequence, you can move it into the transposer, simplifier or capo calculator. For practice, play along with the recording and correct only the points where the suggested harmony clearly disagrees with what you hear.

Chord detection is not a replacement for a detailed musical transcription, but it can substantially shorten the first stage of figuring out a song.

Frequently asked questions

Does it work with every song?

It works best when the harmony is clear. Dense arrangements, heavy distortion, jazz voicings and modulation can reduce accuracy.

Do I need to install anything?

No. Open the tool and choose the song.

Do I need to install software?

No. Open the tool and choose the song.


YOUR SETLIST

Setlists and backups

Find chord sheets →
Songs saved on this device
Backups and previous setlists

The backup includes your chord sheets, setlists and edits. Importing adds items alongside those already on this device.

YOUR VERSION

Edit chords and lyrics

Edits stay on your device, appear in Stage Mode, and are included when you share a new copy. The original chord sheet stays intact.

PLAY TOGETHER

Share setlist

The link shares a copy with the current song order, chord sheets and edits. Recipients can edit their own copy on their device.

Anyone with the link can access this copy. You can delete the link later.

Links created on this device
AT YOUR PACE

Reading tools

Transpose chords

0

Font size

32

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Stage reading

Take CifraAgora with you

Installation is optional. Your setlists and edits stay in this browser.