If your strings go out of tune a lot, it generally means that they get caught somewhere (on the nut, bridge, or head) and then slip.

You can fix most of the problem when you string the guitar. Make sure that there is no looseness behind the ball of the string or in the windings on the tuning head. If your wrappings aren't tight, or the string ball slips, your guitar will go out of tune. Test this by pulling each string up about 2 inches off the fretboard. If you hear the string slip, there was looseness.

Also, put a small drop of lubricant (my tech gave me a bottle of teflon lubricant) on the nut under each string. Sometimes a rough part on the nut will catch the string. Once you bend, the catch is gone and the string moves, out of tune.

Hope this helps.


Jon