The guitar tuning methods are as follows:

1. Six-tone flute method. This is the simplest method and is suitable for beginners. The six-tone flute is specially designed for guitar tuning. Its six notes correspond one-to-one with the six strings of the guitar in terms of pitch and arrangement, so tuning is very simple. Just blow one flute note and record it. Hold its pitch and adjust the pitch of the corresponding string to be the same. Tune the six strings accordingly.

2. Monophonic flute method. The monophonic flute is a tool suitable for tuning all musical instruments, including guitars. A set of monophonic flutes is generally a complete set of diatonic scales, but we only need to choose one of the flutes, which is very convenient to carry around. As for which tone flute to choose, it all depends on your own habits, but it is usually one of the six tones of guitar strings: E, A, D, G, B, and E.

3. Listen to the phone sound method. Sometimes when performing at a friend's house, you suddenly find that the strings are not accurate and you forget to bring the tuning flute with you. What should you do? Don't worry, I will teach you a trick to pick up the phone receiver or press the button. Hands-free, did you hear the busy signal? This is an international standard A sound. By the way, first tune the fifth string A accordingly, and then tune the other strings accordingly.

4. Listen to the natural overtone method. After tuning, you can use the natural overtone method for more accurate calibration. The principle is: the natural overtone of the guitar's twelfth fret should be the same as the open string tone.