Using Chord Diagrams to Learn Guitar Chords
Guitar Chord Diagrams show the notes used to play a guitar chord and their location on the fretboard of the guitar.
View guitar chord diagrams as if you were facing the fretboard with the guitar's headstock pointed straight up.
The chord used in the chord diagram above is an Open C Major chord.
The thick line at the top of the chord diagram represents the nut (a piece of bone, ivory, or other material at the top of the neck that holds the strings in place) of the guitar. The vertical lines in the chord diagram represent the guitar strings, and the horizontal lines represent the guitar frets.
The black circles show to fret the A string at the 3rd fret, the D string at the second fret, play the G string open, the B string at the first fret, and play the high E string open.
Playing an open string means you pluck or strum the string without fretting or holding it down, this is shown with an "0" at the top of the diagram.
An "X" shown on the chord diagram tells you which string(s) not to play.
A number to the side of the guitar chord diagram lets you know which fret to start the chord on.
For the B major barre chord above, the number 7 shows to barre your finger on the 7th fret.