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Chord Sheet Transposer

Paste a chord chart — chords on their own line above the lyrics, or inline like [G] — shift it by semitones, and get the whole chart transposed with alignment preserved, plus guitar chord diagrams for every chord used.

How Chord Sheet Transposer Works

Transposing a song means shifting every chord up or down by the same number of semitones so it stays in a new, more singable or playable key without changing the melody's shape. Doing this by hand means recalculating every chord in a chart one at a time -- this tool does the whole chart at once and re-renders guitar diagrams for the new chords automatically.

Formula & Method

Each chord's root note is converted to a pitch class (C=0 through B=11), shifted by the number of semitones you choose (wrapping around the 12-note octave), and converted back to a note name -- as sharps or flats, per your spelling preference. The tool auto-detects whether your chart uses chords on their own line above the lyrics or inline [G]-style brackets, and for the line-above-lyrics format it preserves spacing even when a transposed chord name changes length (e.g. G → Gb), so the chords still line up over the correct syllable. Guitar chord diagrams are generated from known open-position shapes where available, or derived as movable barre shapes (based on the E-shape or A-shape barre patterns) for chords without a standard open-chord fingering.

Worked Example

The built-in "Amazing Grace" example (chords G, C, D, Em) shifted up 2 semitones becomes A, D, E, F#m -- a whole-step transposition, one of the most common reasons to transpose a hymn or song into a more comfortable vocal range.

Frequently Asked Questions

Why does shifting a chord sometimes make the lyrics misalign?
It shouldn't -- the tool specifically compensates for this: when a transposed chord name gets longer or shorter than the original (like E becoming F#), it adjusts the whitespace immediately after that chord so every later chord on the line still lands above the same lyric syllable it did before.
Should I pick sharps or flats when transposing?
Musically, keys have a conventional preferred spelling (e.g., the key of F usually uses Bb rather than A#), but both spellings are enharmonically identical and sound the same on a guitar or any fixed-pitch instrument -- pick whichever matches how the song is normally written or your own reading preference.
Why do some chords show "No diagram available"?
The diagram renderer only covers a specific set of chord qualities (major, minor, 7, maj7, m7, sus2, sus4) in either a known open-position shape or a derivable barre shape -- chords with extensions outside that set (like 9ths, 13ths, or altered chords) aren't mapped to a fingering, so no diagram is shown for those.
How does the tool guess the song's key?
It takes the root of the very first chord it finds in the chart as a rough guess at the key -- this is a simple heuristic (many songs do start or end on their home chord) rather than actual key detection, so treat it as a hint, not a definitive answer, especially for songs that open on a non-tonic chord.

Works with chords on their own line above the lyrics (spacing is preserved, even when a chord name changes length) or inline chords like [G]lyrics. Guitar diagrams cover major, minor, 7, maj7, m7, sus2, and sus4 chords — some are shown as a movable barre position rather than the most common open-chord fingering, and slash-chord bass notes are noted below the diagram but not reflected in the fretboard shape itself.