Song Transposer online

Your transposed chords will appear here.

Use the Song Transposer to move a chord progression or full chord sheet into a different musical key without rewriting every chord manually. Paste your chords, choose the original and target key, or shift the song up or down by semitones, then copy the transposed version.

This is useful when a song sits too high or too low for a singer, when a guitarist wants easier chord shapes, when musicians need to match another instrument, or when you simply want to experiment with the same progression in a different key.

For example, transposing:

C – G – Am – F

from C major to D major produces:

D – A – Bm – G

The relationship between the chords stays the same; the entire progression moves to a new pitch level.

How to Use the Song Transposer

The tool supports two common ways to transpose music.

Transpose From One Key to Another

Choose the current key of the song and the key you want to move it to.

Then:

1. Paste your chord progression or chord sheet.
2. Select the original key.
3. Select the target key.
4. Choose automatic, sharp, or flat note spelling if needed.
5. Run the transposition.
6. Copy or download the result.

For example:

Original key: C
Target key: E

Input:

C – Am – F – G

Output:

E – C#m – A – B

If you do not know the song’s key yet, use the Song Key Finder first.

Transpose by Semitones

You can also move the song up or down by a specific number of semitones.

Examples:

• +1 = up one semitone
• +2 = up one whole step
• −1 = down one semitone
• −2 = down one whole step
• +12 = up one octave
• −12 = down one octave

This is useful when a singer says, “Can we take the song down two semitones?” and you want the new chords immediately.

How Song Transposition Works

Transposition means moving every musical pitch by the same interval.

The 12 pitch classes used in Western chromatic music repeat in this order:

C – C#/Db – D – D#/Eb – E – F – F#/Gb – G – G#/Ab – A – A#/Bb – B

If a song moves from C to D, every chord moves up by two semitones.

So:

• C becomes D
• G becomes A
• Am becomes Bm
• F becomes G

The chord quality normally stays the same.

For example:

• Am → Bm
• G7 → A7
• Cmaj7 → Dmaj7
• Fsus4 → Gsus4

Only the pitch level changes.

If you want a deeper explanation of this process, read our guide to how to transpose music.

Transposing a Full Chord Progression

A song is rarely made from just one chord, so the transposer is designed to work with complete progressions.

Suppose you have:

G – D – Em – C

and transpose it up two semitones.

The result becomes:

A – E – F#m – D

Every chord moves by the same interval, preserving the harmonic relationship of the progression.

This matters because changing only some chords would alter the harmony. True transposition moves the entire progression consistently.

You can compare the resulting harmony with the Music Key Chart or explore the expected chords in different keys with our guide to chords in every key.

Transposing Chord Sheets With Lyrics

The Song Transposer can also be used with chord sheets that contain lyrics.

For example:

C              G
You are my sunshine
Am             F
My only sunshine

If transposed from C to D, the chord lines become:

D              A
You are my sunshine
Bm             G
My only sunshine

The goal is to change recognized chord symbols while preserving lyrics, spacing, and line breaks.

This makes the tool much faster than manually searching through an entire song and replacing each chord one by one.

Transposing Major, Minor, and Extended Chords

Transposition changes the chord root while keeping the chord type intact.

Examples:

The same principle applies to many common extensions such as:

• minor chords,
• dominant 7ths,
• major 7ths,
• minor 7ths,
• suspended chords,
• diminished chords,
• augmented chords,
• add chords,
• 9ths,
• 11ths,
• and 13ths.

The suffix remains attached to the transposed root.

How Slash Chords Transpose

Slash chords contain both a main chord and a specified bass note.

For example:

D/F#

When transposed up two semitones:

• D becomes E
• F# becomes G#

So:

D/F# → E/G#

Both notes must move by the same interval.

If only the main chord were changed, the harmonic meaning of the slash chord would no longer be preserved correctly.

Sharps, Flats, and Enharmonic Notes

Some pitches have more than one valid name.

For example:

• C# = Db
• D# = Eb
• F# = Gb
• G# = Ab
• A# = Bb

These pairs are called enharmonic equivalents.

The pitch is the same, but the preferred spelling often depends on the musical key and harmonic context.

For example, a chord may technically be displayed as A# major, but Bb major may be the more natural spelling in that particular key.

That is why the transposer includes sharp and flat display preferences.

If you want to understand how note spelling connects to keys and scales, see Musical Keys Explained and the Scale Finder.

Using the Song Transposer for Singing

One of the most common reasons to transpose a song is vocal comfort.

If the highest note is uncomfortable, lowering the song by one, two, or three semitones may place the melody in a more manageable range.

If the song feels too low, raising the key can have the opposite effect.

The important point is that the chords and melody must move together. The Song Transposer handles the chord side of that change.

For example, if a singer wants a song moved from G major down to F major, the progression:

G – D – Em – C

becomes:

F – C – Dm – Bb

The same progression is retained at a lower pitch level.

Song Transposition vs Using a Capo

Transposition and capo use are related, but they are not exactly the same thing.

A Song Transposer changes the written chord names.

A capo changes the sounding pitch of the guitar while allowing the guitarist to keep familiar chord shapes.

For example, suppose you want the song to sound in D major.

You could transpose:

C – G – Am – F

into:

D – A – Bm – G

and play those new chords directly.

Or a guitarist could place a capo on fret 2 and continue playing the original C-family shapes.

Both approaches can produce the same sounding key, but the fingerings are different.

Use the Capo Chord Calculator when you want to compare capo position, chord shapes, and actual sounding chords.

Choosing the Best Key

There is no universally best key for a song.

The right key depends on factors such as:

• vocal range,
• instrument range,
• chord difficulty,
• preferred guitar voicings,
• arrangement,
• tone,
• and the other musicians involved.

Sometimes the mathematically correct transposition produces awkward guitar chords. In that situation, a capo may provide easier shapes.

In other cases, a keyboard player may prefer the directly transposed chords.

Understanding what a musical key is makes these choices easier.

Accuracy and Limitations

The Song Transposer performs chromatic chord transposition based on the interval you select.

It is designed for written chord symbols rather than recorded audio.

Important limitations include:

• It does not change the pitch of an MP3 or audio recording.
• It does not automatically transpose a sung melody.
• Enharmonic spelling can depend on musical context.
• Unusual custom chord notation may not always be recognized.
• The same pitch can sometimes be written using either a sharp or flat name.
• Transposing a song does not guarantee the new chords will be easier to play.
• A progression alone may not always identify a musical key unambiguously.

For key relationships beyond simple transposition, you can also explore relative major and minor keys and parallel keys.

Privacy

The Song Transposer processes the chord text you enter directly through the tool interface.

You do not need to upload an audio recording or create an account just to transpose written chords.

Temporary calculation history, when available, is intended only to make repeated transpositions easier during your browser session.

Frequently Asked Questions

How do I transpose a song to another key?

Choose the current key and the target key, then move every note and chord by the same musical interval. The Song Transposer performs that calculation automatically.

How many semitones is C to D?

C to D is two semitones, or one whole step.

What happens to a minor chord when I transpose it?

The chord remains minor. For example, Am moved up two semitones becomes Bm.

Does transposing change the rhythm or tempo?

No. Transposition changes pitch, not tempo, rhythm, or note duration.

Can I transpose an entire chord sheet?

Yes. You can paste chord progressions or chord sheets and transpose recognized chord symbols together while keeping the surrounding text intact.

How do I transpose slash chords?

Both the main chord root and bass note must move by the same interval. For example, D/F# moved up two semitones becomes E/G#.

Should I use sharps or flats after transposing?

Either may represent the same pitch in some cases, but the musically preferred spelling depends on the key and harmonic context. Use the sharp/flat display option when you need a particular notation style.

Can I use this tool to change the pitch of an audio song?

No. The Song Transposer changes written chord symbols. It does not process or pitch-shift an audio recording.

How can I find the original key before transposing?

If you do not know the song’s key, start with the Song Key Finder and then return to the transposer once you know the current key.