How do you read guitar chords?

Reading Guitar Chord Charts

1. the right vertical line represents the 1st string.
2. the left vertical line represents the 6th string.
3. the horizontal lines represent the fret bars.
4. the space between the horizontal lines represent the frets.
5. the dots tell you where to put your fingers.

What is the Bm chord?

The Most Common Version. Unlike some other commonly used minor chords (like Em or Am), the B minor chord doesn’t use any open strings. For this one you must use one finger to fret multiple strings in what is called a “barre chord.” Your index finger rests across every string but the low E.