| Case | Singular |
|---|---|
| Nominative | Harmonia |
| Genitive | Harmoniae |
| Dative | Harmoniae |
| Accusative | Harmoniam |
| Ablative | Harmoniā |
| Case | Singular | Plural |
|---|---|---|
| Nominative | harmonia | harmoniae |
| Genitive | harmoniae | harmoniārum |
| Dative | harmoniae | harmoniīs |
| Accusative | harmoniam | harmoniās |
| Ablative | harmoniā | harmoniīs |