Electronic tuner

When the musician plays a single note, the tuner senses the pitch. The tuner then displays the pitch in relation to the desired pitch, and indicates whether the input pitch is lower, higher, or equal to the desired pitch. The humble guitar tuner is one of the most essential pieces of gear that any guitarist can own. Though its function may be simple, the importance is incredibly high; and ensuring your guitar is in tune is paramount. Decades ago you would've had to use tuning forks, pitch pipes or have perfect pitch.