| Rating | Solver | Clue |
|---|---|---|
| CLAVICHORD | Early keyboard instrument | |
| MOOG | Keyboard instrument | |
| CELESTE | Keyboard instrument | |
| HARMONIUM | Keyboard instrument | |
| PAINO | Keyboard instrument | |
| CELESTA | Keyboard instrument | |
| HARPSICHORD | Keyboard instrument | |
| SPINET | Keyboard instrument | |
| ORGAN | Keyboard instrument | |
| PIANO | Keyboard instrument | |
| ABACUS | Early counting instrument | |