A tuner ensures your strings are vibrating at the correct frequencies. Most modern tuners use your device's built-in microphone to detect pitch and guide you.
Most interfaces use a needle or "indicator bar" that turns green when in tune, red when flat (low), and blue or yellow when sharp (high). 🎼 Chord Finder Guitar Tuner Chord Finder Metronome
Professional-grade apps can reach an accuracy of +/- 1 cent , often exceeding the sensitivity of the human ear. Modes: A tuner ensures your strings are vibrating at