Re-stringing your Guitar  
Unless you have good reason to take all your strings off at once - don't. Normally strings are changed one at a time. An invaluable tool in your maintenance kit, along with allen keys, screw driver and pliers, is a string winder - a must for changing strings. When cutting off a string, do it near the pickups and hold on to the longest part - the ‘snap’ when cut can be dangerous. Start with your low E string and work through string by string.
On an acoustic guitar, take out the end pin and remove the piece of old string. Put the new ball end in the hole, push the end pin in firmly and give the string a number of sharp tugs, to lock it in. When doing this, be careful not to put a kink in the string. Securing the ball end on electric guitar is normally straight forward. Remove the cut or broken string from the machine head (tuning peg). After securing the string at the bridge, follow these instructions:
Align the hole so that it is at a right angle (90°) to the fretboard, thread the string through the hole allowing some slack to be wrapped 3 to 4 times around the post (tuning peg). See the photo above.
Bend the string sharply at the exit of the hole, thread it around and back under itself, then pull it back over the top of the string. As the string is wound it will ‘lock’ in position. Cut off the surplus string.
Keep the tension on the string by using the thumb & little finger as a lever as you wind it up. Make sure the string is not wound over itself, the turns around the post (peg) should look neat, as in the photo.
The string(s) should be repeatedly stretched and retuned until it doesn’t slip out of tune. Two final details that can help make your guitar stay in tune while performing are:
  1. After stretching and re-tuning, place your thumb on the string just past the bridge and push the string down to get rid of any slight upward curvature of the string as it goes over the bridge. Do the same thing at the other end as the string leaves the post (tuning peg).
  2. If you’re going to bend strings when soloing, the strings should be bent and the tuning checked before going on stage. The idea is that you will then be able to safely bend strings in any performance, without worrying about slippage or tuning problems.
 
 
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