1. Key Detector
  2. Tools
  3. Chord transposer

Transpose chords to any key

Pick the key the song is in and move it up or down until it fits your voice or your capo. You get the new key and its seven chords, written the way musicians read them.

How to use it

Transpose chords to any key

  1. Choose the original key

    Select the key of the song. Not sure? Drop the file into the analyzer and it fills this in.

  2. Move it

    Use + and − one semitone at a time, or pick the target key directly.

  3. Read the new chords

    The seven chords of the new key appear with their roman numerals, so I, IV and V stay easy to find.

How to find a key that fits your voice

Most singers are comfortable across about an octave and a half. If the chorus feels strained, move the song down two semitones; if the verse is too low to project, move it up. Change one semitone at a time and sing the highest phrase after each step.

Guitarists can keep familiar shapes with a capo: transpose down to a key with open chords and put the capo on the fret that brings it back. To change the key of a song playing on YouTube without changing its speed, the free Key Detector extension does it in the browser.

FAQ

Questions

How many semitones should I transpose?

Two semitones, a whole step, is a common change for a singer. More than five usually changes the character of the song. Sing the highest phrase after each step.

Why does it write B♭ instead of A♯?

Each key has its own spelling. In F major the fourth chord is B♭, never A♯, so the chords read the way a chart would print them.

Does it work with minor keys?

Yes. Choose a minor key as the original and you get the chords of the natural minor scale, the one most songs use.

Can I transpose a YouTube video?

Not on this page, which works with chords. The free Key Detector extension changes the key of YouTube and other sites while they play.