Harmony Mapper

Click any chord to see where it can lead

Tonic

Mode

Lenses

C I

tonic

major · diatonic

C · E · G

C

1 / 4

Variations click = play · dbl = add

Triad

7th

Ext

Sus

Outgoing (5)

Diatonic motion

Dm I → ii

F I → IV

G I → V

Am I → vi

Em I → iii

Bridge

Target tonic

Mode

Pick a target key and click SEARCH. Pivot chords will be highlighted in the circle.

Preset Library

IV → V7 → iii → vi — Japanese pop classic

→ → →

Deceptive cadence — V → vi instead of V → I, keeps going.

◌ click any chord to enable audio C Ionian (major) · diatonic: C — Dm — Em — F — G — Am — B° Harmony Mapper v1.5 · beta © 2026 Vlastimil Červený

Progression double-click any chord to add

Empty — start clicking chords on the circle.