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Song key finder

Drop audio here or click to chooseMP3, WAV, M4A or OGG · up to 20 minutes for automatic chord sheets
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Kit Ferramentas Reparação E Cuidados Guitarra Luthier 25pcs Kit Ferramentas Reparação E Cuidados Guitarra Luthier 25pcs Kit Ferramentas Reparação E Cuidados Guitarra Luthier 25pcs

Kit Ferramentas Reparação E Cuidados Guitarra Luthier 25pcs

Kit profissional completo para manutenção, limpeza e reparo de guitarras, ideal para músicos, luthiers e técnicos.

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O modelo possui um conector P10 reto e outro P10 em “L”, facilitando a conexão em diferentes instrumentos e ajudando na organização do cabo durante o uso.


About this tool

Knowing the key helps with transposition, capo choices and understanding the song harmony.

How to use

  1. Choose the song.
  2. The tool measures pitch-class distribution and compares major and minor key profiles.
  3. Review the estimated key and use it with the other Cifra Agora tools.

What finding the key means

A musical key describes the tonal center around which a song tends to organize. The detector looks at the distribution of pitches across the recording and compares that profile with common major and minor key patterns.

Songs may borrow notes, begin away from the tonic or modulate. In those cases the result should be treated as a global estimate and checked against the actual harmony.

Key is not the same as the first chord

Many songs start on another scale degree, use suspended introductions or end without a clear tonic resolution. The first chord alone is therefore not a reliable key detector.

Listen for places where phrases feel settled, notice recurring chords and follow the bass resolution. Those clues help confirm the automatic suggestion.

What to do next

Once you know the likely key, you can transpose the chord sheet to a better vocal range, choose more readable sharp or flat spellings and calculate a useful capo position.

If two keys receive similar confidence, try their main scales and tonic chords over the recording. A short listening test often resolves the ambiguity.

Frequently asked questions

Is the detected key always exact?

No. Modal songs, modulation and ambiguous intros can confuse key estimation. Treat it as a strong starting point.

Do I need to install software?

No. Just open the tool and use it.

Is the result always exact?

No. Automatic music analysis produces estimates that should be checked by ear, especially with complex recordings.


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

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Font size

32

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Stage reading

Take CifraAgora with you

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