Harmony Builder
Chords & progressions
Color tones
Progression Builder
Click chords in the matrix to add them here.
Common progressions
Modal Interchange
Borrow chords from parallel modes to add color and variety.
Major
Natural Minor
Dorian
Mixolydian
Voice Leading (Neo-Riemannian)
Move between chords with minimal voice motion using P, R, and L transforms.
Result
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Related resources
Quick guide
How to use Harmony Builder
Choose a key and scale to map the diatonic chords. Click a chord to hear it, add it to a progression, or use the other tabs to compare modal interchange and voice-leading options.