The guitar has six strings tuned in the following way
(from thinner to thicker):
1-e (acute or sing)
6-E (severe o low)
Guitar strings and related notes:
To tune the instrument must have a reference note that in our case and the A at 440 Hz Today there are sophisticated electronic tuner that facilitate the task, but any instrument capable of giving an A can be used: the tuning fork, for example or a piano and so on. But there is also a simple home system for those who just do not have other alternatives: the telephone. Lift the handset and hear the dial tone (tu-tuu): that sound is an A and we can use it as a tuner. The first thing to do, then, is to ensure that the fifth string plucked the vacuum makes a tuneful with the agreement that we are using. To achieve this we must of course act on its key placed on the headstock of the guitar by pulling or releasing the rope until the two sounds match. Now we can use the fifth string as a reference to tune the others. It is true that the guitar chords give all the notes are, but you better learn to sing with the traditional system, mainly because it is a great way to sharpen your ear and not always because you do have a tuner.
We play the fifth string on the fifth button pressed to get the note RE and pinched the fourth string vacuum by pulling or releasing it until the two sounds match. We play the fourth string on the fifth button pressed to get the note SOL and pinch the top rope by pulling or releasing load until the two sounds match. We play the third string pressed on the fourth button to get the note and plucking the second rope by pulling or releasing load until the two sounds match. We play the second string pressed on the fifth button to get the note MI and plucked the first string vacuum by pulling or releasing it until the two sounds match. Now we still have to grant the sixth string (the low-MI), to do this we take as reference the rope I sing (1 rope) bearing in mind that I am the sixth string and two octaves down (sound worse ), or we can play the fifth string to the seventh key, and pinching the sixth string, the two sounds must match, bearing in mind that I am the sixth string is an octave lower than the fifth to seventh key.