Song & Chord Transposer
Transpose chord sheets, lead sheets, or progressions by semitones or target key. Calculate guitar capo positions and harmonic scale degrees.
How to Transpose Chords to Another Key or Use a Capo
Transposing means shifting an entire progression of chords up or down in pitch by a set number of semitones (half steps). Musicians transpose songs for two main reasons: adjusting a song to fit a singer's comfortable vocal range, or changing hard barre chords (like Eb or F#) into friendly open guitar chords (like G, C, and D) using a capo.
| Scale Degree | Roman Numeral | Chord Type | Musical Role | Chords in C Major | Chords in G Major |
|---|---|---|---|---|---|
| 1st (Root) | I | Major | Home base / Resolution | C |
G |
| 2nd | ii | Minor | Lead-in chord (supertonic) | Dm |
Am |
| 3rd | iii | Minor | Mellow connector (mediant) | Em |
Bm |
| 4th | IV | Major | Open, uplifting transition | F |
C |
| 5th | V (or V7) | Major / Dominant | Tension pulling back to home | G (G7) |
D (D7) |
| 6th | vi | Minor | Emotional relative minor | Am |
Em |
| 7th | vii° | Diminished | Sharp leading tone | Bdim |
F#dim |
A capo clamps across the guitar neck, raising the pitch of all open strings at once. This lets you play familiar open chord shapes (like G, Em, C, D) while actually sounding in a much higher key (such as Bb or B). Open strings keep ringing and resonating freely, giving your acoustic guitar the chimey, full-bodied sound that barre chords often lack.
Transposing for a Singer's Vocal Comfort
When a song's chorus pushes a singer right into uncomfortable straining, shifting the song down just one or two semitones (for example, from E Major down to D Major) can make high notes sound smooth and relaxed while keeping all the original musical feel intact.
Understanding the Nashville Number System
Studio musicians often write chord charts with numbers (1, 4, 5, 6m) instead of specific letters (C, F, G, Am). Because the numeric relationships stay identical in every key, the entire band can change keys instantly without anyone needing to scribble out a new chord chart.
Frequently Asked Questions
Paste your song chords into the editor, then click the +1 or -1 semitone buttons step by step. Hum or sing along after each shift until the chorus notes sit comfortably in your natural singing range without straining.
If a song uses awkward barre chords like F#m or Bb, transposing shows you where to clamp a capo (for example, on Fret 3) so you can play familiar open chord shapes like Em or G while staying in the exact key of the recording.