Reharmonizing with chord substitutions adds harmonic diversity.
Reharmonize with alternate chord of same function.
| Chord | Family | Function |
|---|
| I | tonic family | temporary/permanent resting chord |
| IImi | subdominant family in major keys | move away from tonic |
| IIo | subdominant family in minor keys first inversion bVII triad often replaces IIo | move away from tonic |
| bIII | tonic family in minor keys | temporary/permanent resting chord |
| IIImi | tonic family in major keys | temporary/permanent resting chord |
| IVmi | subdominant family in minor keys | move away from tonic |
| IV | subdominant family in major keys | move away from tonic |
| Vmi | dominant family in minor keys | move towards tonic |
| V | dominant family in major keys also in raised 7th minor keys | move towards tonic |
| bVI | tonic family in minor keys | temporary/permanent resting chord |
| VImi | tonic family in major keys | temporary/permanent resting chord |
| bVII | dominant family in minor keys | move towards tonic |
| VIIo | dominant family in major keys also in raised 7th minor keys first inversion V triad often replaces VIIo | move towards tonic |