Learn to Tune Your Guitar
What is relative tuning? It is when you take the adjacent string with the highest pitch and match the sound of it to the lower strings on your guitar.
but first you must tune the sixth string to either a tuning fork or a piano.
This will assure that you have an accurate staring point.
Go sit on your couch or a chair with no arms, and then lay your guitar on its back on your lap.
Make sure you have a pick with you.
First, the sixth string-6(E) is the one on the top of the neck, the fatter one.
Now go to the sixth string and hold down on the fifth fret and pick this string and listen to the sound closely.
Then match the fifth string-5(A) to this sound by adjusting the string with the tuner knob on the head.
To lower the tone loosen the knob on head.
To raise the tone tighten the knob on the head.
This will take you some time of getting use to, but keep practicing and you be a pro in no time.
Now continue the same process for the 4(D), 3(G), 2(B), strings by matching the tone to your previous string except the last string 1(E) you will hold your finger on the fourth-(D) fret and match your tone to the second string.
Remember this is only one way to tune your guitar, but this will help until you have more experience and learn other ways to tune your guitar.
Here a few other ways of tuning you can learn to use.
If you have access to piano you can sit and match sounds from piano to guitar.
You can also use tuning fork, electronic keyboard, or pitch pipes.
Whatever process of tuning you use, it is best to tune your guitar regular basis.
Strings can get out of tune over time especially if you play and practice allot.