| Answer | Crossword Clue |
|---|---|
| monochords | MONOCHORD, a musical instrument having only one string |
| sonometer | a musical instrument having only one string, aka monochord |
| sonometers | SONOMETER, a musical instrument having only one string, aka monochord |
| monochord | a musical instrument having only one string |
| spinets | an early harpsichord having a single keyboard and only one string for each note |
| bichord | (of a musical instrument) having two strings for one note |
| organs | A large musical instrument having rows of tuned pipes sounded by compressed air, and played using one or more keyboards to produce a wide range of musical effects. The pipes are generally arranged in ranks of a particular type, each controlled by a stop, and often into larger sets linked to separate keyboards |
