The accuracy of the instrument is a key point to successful learning. Tune your guitar before each lesson is therefore essential. It is important that each note is in tune for your hearing memory to work. If you play on a guitar that is out of tune, only your muscle memory will work, which will slow down your progress. Moreover, having a guitar that sounds good will give you great satisfaction.
The tuner will autiomatically detect the string you play. Turn the knob related to the string until the needle is at the center of the note. The arrow shows you the directing you should turn the knob to get in tune. You can help yourself with the Hertz information that indicates where the sound of your string is right now versus where it should be.
If you do not have a clip tuner, CoachGuitar offers you this online tuner that allows you to get your guitar in tune in all circumstances, do not forget to allow access to your microphone. This online tuner is free, it works on tablets, smartphones and desktop computers.
The most commonly used tuning is EADGBE. If the string sounds above the target note, we recommend lowering the knob in the upright direction a quarter of a turn, and go up gently until you reach the desired note: this allows a better stability of the tuning.