| 摘要 |
<p>There is provided an apparatus for tuning a stringed instrument, such as an electric guitar or bass. Means such as an electromagnetic pick-up 8 is provided for determining the pitch of each string 9 and is connected to means 14 for comparing the pitch with a reference signal corresponding to the correct pitch. The comparing means output controls a drive, such as a motor 11 with gears 12 and a tuning rod 10 adjacent the instrument bridge 3, which changes the pitch of the string 9 until it is correctly tuned as determined by the comparing means 14. When the pitch equals the reference a circuit 16 operates a lock and removes power from the motor. <IMAGE></p> |
