subject: 6 Easy Steps To Tune A Guitar [print this page] When you are done tuning all of your strings go through all of them quickly one more time. As you adjust each string, the tension on the neck of your guitar changes, which affects the tension of the other strings. This means the first string may fall slightly out of tune by the time you finish with the last one. Don't fret though--you won't have to make such major adjustments this time through.Now that your guitar is in tune, you can enjoy its beautiful sound once again. Have fun!