Key comparator
Differences between signatures, notes and chords of two keys.
They are 1 step apart on the circle of fifths. Neighbouring keys: modulating between them sounds natural.
| C major | G major | |
|---|---|---|
| Key signature | No accidentals | 1 sharp |
| Notes | C D E F G A B | G A B C D E F♯ |
| I | C | I G |
| ii | Dm | ii Am |
| iii | Em | iii Bm |
| IV | F | IV C |
| V | G | V D |
| vi | Am | vi Em |
| vii° | Bdim | vii° F♯dim |
Underlined: notes they don't share.
Pivot chords
Chords that belong to both keys: they work as bridges for modulation.
- C · I → IV
- Em · iii → vi
- G · V → I
- Am · vi → ii