You need to know where the notes are on the guitar neck. Barre chords are defined by a root note and you cannot do so if you do not know where the notes are. If you need to learn the notes, place the link under Resources under this article.
Learn how to read a chord diagram. There is a link to a chord chart tutorial under this article under Resources.
Each bar chord form contains a root note. To see this on the chord diagram: CLICK TO ENLARGE the image associated with the step.
When the shape is played on the guitar, the note that coincides with the root note will define the alphabetical name of the chord. In other words, if you play a large bar chord form and the root note falls on a ‘G’ note, the chord will be a (G major).
Guitar bar chords are physically harder to play than open chords, especially if you are just a beginner and haven not yet developed as ever so accommodating on your index finger. To clean the chord sound, like an open chord, the fingers must apply more pressure in the middle of the edge.
Find charts for different bar chords. Learn and practice the new chords, and have a blast !!!
Tips and warnings
If you have never used guitar chords before, you may be wondering ‘What are they and why would I want to use them?’ A barre chord is an extremely versatile type of guitar chord where the fingers are used to press down. Barre chords are considered moving chords, so by getting to know you automatically another eleven. Barring allows you to easily play in any key and minimize the movement between chords. Barre chords offer many benefits. The biggest advantage is the ability to choose what you want to play.