| Answer | Crossword Clue |
|---|---|
| STOP | Graduated set of organ pipes. |
| STOP | Graduated set of pipes in an organ. |
| STOP | Set of organ pipes. |
| STOP | Set of organ pipes |
| STOP | Tuned set of organ pipes |
| registers | A set of organ pipes so controlled |
| register | A set of organ pipes so controlled |
| register | A sliding device controlling a set of organ pipes that share a tonal quality |
| registers | A sliding device controlling a set of organ pipes that share a tonal quality |
| stopt | set of organ pipes producing tones of the same quality or the knobs controlling these |
| stop | set of organ pipes producing tones of the same quality or the knobs controlling these |
