| Answer | Crossword Clue |
|---|---|
| SLIDERULES | Instruments used by mathematicians. |
| SITARS | Instruments used by the Beatles |
| ALTISCOPES | Instruments used on subs. |
| OBOES | Instruments used in orchestra tuning |
| FIFES | Instruments used in military parades. |
| SPECULA | Reflectors used in optical instruments. |
| OCARINAS | Wind instruments often used as toys. |
