Chord Transposer
Transpose chords by semitone interval or between keys with correct enharmonic spelling for the destination key.
What Is Chord Transposition?
Transposing a chord moves every note by the same interval. You might transpose by semitones for a capo change, or between keys when rewriting a song for a different vocalist or instrument range.
Two Transposition Methods
Transpose by semitone count when you know the interval. Transpose by key when you are moving from one tonal center to another and want the shortest, up, or down path between roots.
Related tools: Chord Calculator, Chord Progression Generator, and Chord Finder.
Frequently Asked Questions
How do I transpose D minor up a perfect fourth?
A perfect fourth is five semitones. D minor (D-F-A) becomes G minor (G-B♭-D).
What is key-based transposition?
It finds the interval between two key roots, then moves the chord by that amount. C to G is seven semitones up or five down.
Does transposition change chord quality?
No. A minor chord stays minor after transposition. Only the root and note names shift.
Can I transpose seventh chords?
Yes. Select the matching chord type, such as dominant 7th or major 7th, before transposing.
Why show both original and transposed notes?
Seeing both spellings helps verify voicings on piano or guitar and confirms the interval was applied correctly.
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